diff --git a/.gitignore b/.gitignore
index efc9465..e469f0d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,7 @@
 node_modules/
 .aws-sam/
 samconfig.toml
+data/
+.DS_Store
+BofA API Resources/
+*.csv
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..99dccd6
--- /dev/null
+++ b/README.md
@@ -0,0 +1,63 @@
+# Payments Dashboard
+
+AWS SAM application that ingests payment CSVs, syncs check data with Bank of America CashPro APIs, and surfaces an outstanding-payments dashboard in Slack.
+
+## Architecture
+
+- **ProcessPaymentCsv** - Lambda triggered by S3 CSV upload. Parses payments, upserts to DynamoDB, and submits new/cancelled checks to the CashPro Check Management API.
+- **FetchBoaTransactions** - Scheduled Lambda (weekdays 9am ET). Calls the CashPro Previous Day Transaction Inquiry API and matches cleared/returned checks back to DynamoDB records.
+- **SlackAppHome** - Lambda behind API Gateway. Renders the payments dashboard on the Slack App Home tab with outstanding aging buckets and drill-down modals.
+
+All three Lambdas run inside a VPC with a NAT Gateway for a static outbound IP (required by BoA IP whitelisting).
+
+## BoA CashPro API Integration
+
+Two separate CashPro APIs are used, each with its own OAuth credentials:
+
+| API | Purpose | Endpoint |
+|-----|---------|----------|
+| Check Management | Issue and cancel checks | `/cashpro/checkmanagement/v1/check-issues` |
+| Reporting (Transaction Inquiry) | Fetch previous-day transactions | `/cashpro/reporting/v1/transaction-inquiries/previous-day` |
+
+**Authentication flow:**
+1. POST to `/authn/v1/client-authentication` with `applicationID`, `client_id`, and `client_secret`
+2. Receive a Bearer `access_token` (valid 1 hour)
+3. Pass the token in the `Authorization` header for subsequent API calls
+
+**Base URLs:**
+- Production: `https://api.bofa.com`
+- Sandbox: `https://api-sb.bofa.com`
+
+## SSM Parameters
+
+All BoA credentials and config are stored in AWS SSM Parameter Store (SecureString):
+
+| Parameter | Description |
+|-----------|-------------|
+| `/payments-dashboard/boa-check-mgmt-app-id` | Check Management application ID |
+| `/payments-dashboard/boa-check-mgmt-client-id` | Check Management client ID |
+| `/payments-dashboard/boa-check-mgmt-token` | Check Management client secret |
+| `/payments-dashboard/boa-reporting-app-id` | Reporting application ID |
+| `/payments-dashboard/boa-account-info-client-id` | Reporting client ID |
+| `/payments-dashboard/boa-account-info-token` | Reporting client secret |
+| `/payments-dashboard/boa-account-number` | BoA account number |
+| `/payments-dashboard/boa-company-id` | CashPro company ID (check management) |
+| `/payments-dashboard/boa-bank-id` | BoA routing number |
+| `/payments-dashboard/slack-bot-token` | Slack Bot OAuth token |
+
+## Scripts
+
+| Script | Purpose |
+|--------|---------|
+| `scripts/test-boa-sandbox.js` | One-off sandbox connectivity test for both CashPro APIs |
+| `scripts/seed-from-csv.js` | Seed DynamoDB from a local CSV file |
+| `scripts/seed-bank-status.js` | Seed bank clear status data into DynamoDB |
+
+## Deployment
+
+```bash
+sam build
+sam deploy --guided
+```
+
+The `BOA_BASE_URL` environment variable in `template.yaml` controls whether Lambdas hit production (`https://api.bofa.com`) or sandbox (`https://api-sb.bofa.com`). All other BoA config is read from SSM at runtime.
diff --git a/scripts/dryrun.cjs b/scripts/dryrun.cjs
new file mode 100644
index 0000000..173b751
--- /dev/null
+++ b/scripts/dryrun.cjs
@@ -0,0 +1,204 @@
+const { DynamoDBClient } = require("@aws-sdk/client-dynamodb");
+const { DynamoDBDocumentClient, ScanCommand } = require("@aws-sdk/lib-dynamodb");
+const { parse } = require("csv-parse/sync");
+const fs = require("fs");
+
+const ddb = DynamoDBDocumentClient.from(new DynamoDBClient({ region: "us-east-1" }));
+
+function toISODate(mdyDate) {
+  const parts = String(mdyDate).split("/");
+  if (parts.length !== 3) return null;
+  const [mm, dd, yyyy] = parts;
+  return `${yyyy}-${mm.padStart(2, "0")}-${dd.padStart(2, "0")}`;
+}
+
+const cancelStatuses = ["voided", "cancelled", "canceled", "marked as void"];
+
+(async () => {
+  // Load all existing payments from DB
+  const dbPayments = {};
+  let lastKey;
+  do {
+    const result = await ddb.send(
+      new ScanCommand({
+        TableName: "PaymentsDashboard",
+        FilterExpression: "begins_with(pk, :prefix)",
+        ExpressionAttributeValues: { ":prefix": "payment#" },
+        ExclusiveStartKey: lastKey,
+      })
+    );
+    for (const item of result.Items) {
+      dbPayments[item.pk] = item;
+    }
+    lastKey = result.LastEvaluatedKey;
+  } while (lastKey);
+
+  // Read CSV from stdin
+  const csvText = fs.readFileSync(0, "utf-8");
+  const rows = parse(csvText, { columns: true, skip_empty_lines: true, trim: true });
+
+  const normalizedRows = rows.map((row) => {
+    const clean = {};
+    for (const [k, v] of Object.entries(row)) {
+      clean[String(k).trim()] = typeof v === "string" ? v.trim() : v;
+    }
+    return clean;
+  });
+
+  const parseAmount = (value) => {
+    const num = parseFloat(String(value || "0").replace(/,/g, "").trim());
+    return isNaN(num) ? 0 : num;
+  };
+
+  const statusRank = {
+    "scheduled": 1,
+    "payment submitted": 2,
+    "issued": 3,
+    "outstanding": 4,
+    "cleared": 5,
+  };
+
+  const newRecords = [];
+  const statusChanges = [];
+  const bankProtected = [];
+  const statusProtected = [];
+  const newCheckIssues = [];
+  const cancelCheckIssues = [];
+  let noChangeCount = 0;
+  const today = new Date().toISOString().slice(0, 10);
+
+  for (const row of normalizedRows) {
+    const checkNumber = (row["Check Number"] || "").trim();
+    if (!checkNumber) continue;
+
+    const method = (row["Method"] || "").trim();
+    let status = (row["Status"] || "").trim();
+    const sendOn = (row["Send Payment On"] || "").trim();
+    const payee = (row["Payee"] || "").trim();
+    const amount = parseAmount(row["Amount in USD"]);
+
+    // ACH auto-clear logic
+    if (method === "ACH" && !cancelStatuses.includes(status.toLowerCase())) {
+      const sendDate = toISODate(sendOn);
+      if (sendDate && sendDate <= today) {
+        status = "Cleared";
+      }
+    }
+
+    const pk = "payment#" + checkNumber;
+    const existing = dbPayments[pk];
+
+    // Bank-confirmed protection
+    const bankConfirmed = existing?.clear_status === "Cleared";
+    let originalCsvStatus = status;
+    if (bankConfirmed) {
+      status = "Cleared";
+    }
+
+    // Status progression protection
+    if (existing) {
+      const oldRank = statusRank[(existing.status || "").toLowerCase()] || 0;
+      const newRank = statusRank[status.toLowerCase()] || 0;
+
+      if (oldRank === 5) {
+        // Cleared is permanent — cannot be voided, cancelled, or anything else
+        if (status !== existing.status) {
+          statusProtected.push({ checkNumber, payee, csvStatus: originalCsvStatus, dbStatus: existing.status, reason: "Cleared is permanent" });
+        }
+        status = existing.status;
+      } else if (newRank < oldRank && !cancelStatuses.includes(status.toLowerCase())) {
+        // Non-cancel status regression — keep the existing (higher) status
+        statusProtected.push({ checkNumber, payee, csvStatus: originalCsvStatus, dbStatus: existing.status, reason: "would regress status" });
+        status = existing.status;
+      }
+    }
+
+    if (!existing) {
+      newRecords.push({ checkNumber, payee, method, status, amount, sendOn });
+      if (method === "Check") {
+        newCheckIssues.push({ checkNumber, payee, amount: amount.toFixed(2), issueDate: toISODate(sendOn) });
+      }
+    } else {
+      const oldStatus = existing.status || "";
+
+      if (bankConfirmed && originalCsvStatus !== "Cleared") {
+        bankProtected.push({ checkNumber, payee, csvStatus: originalCsvStatus, dbStatus: oldStatus });
+      }
+
+      if (oldStatus !== status) {
+        statusChanges.push({ checkNumber, payee, method, oldStatus, newStatus: status, amount });
+      } else {
+        noChangeCount++;
+      }
+
+      // Check for new cancel (only if not bank-confirmed and not cleared)
+      if (method === "Check" && !bankConfirmed && (statusRank[(oldStatus).toLowerCase()] || 0) < 5 && cancelStatuses.includes(status.toLowerCase()) && !cancelStatuses.includes(oldStatus.toLowerCase())) {
+        cancelCheckIssues.push({ checkNumber, payee, amount: amount.toFixed(2), issueDate: toISODate(sendOn) });
+      }
+    }
+  }
+
+  console.log("=== DRY RUN SUMMARY ===");
+  console.log("CSV rows: " + normalizedRows.length);
+  console.log("Existing DB records: " + Object.keys(dbPayments).length);
+  console.log("");
+
+  if (newRecords.length) {
+    console.log("--- NEW RECORDS (" + newRecords.length + ") ---");
+    for (const r of newRecords) {
+      console.log("  + " + r.checkNumber + " | " + r.payee + " | " + r.method + " | " + r.status + " | $" + r.amount);
+    }
+    console.log("");
+  }
+
+  if (statusChanges.length) {
+    console.log("--- STATUS CHANGES (" + statusChanges.length + ") ---");
+    for (const r of statusChanges) {
+      console.log("  ~ " + r.checkNumber + " | " + r.payee + " | " + r.method + " | \"" + r.oldStatus + "\" -> \"" + r.newStatus + "\" | $" + r.amount);
+    }
+    console.log("");
+  }
+
+  if (statusProtected.length) {
+    console.log("--- STATUS PROGRESSION PROTECTED (" + statusProtected.length + ") ---");
+    console.log("  (CSV tried to regress status — blocked by progression guard)");
+    for (const r of statusProtected) {
+      console.log("  # " + r.checkNumber + " | " + r.payee + " | CSV: \"" + r.csvStatus + "\" | Kept: \"" + r.dbStatus + "\" | " + r.reason);
+    }
+    console.log("");
+  }
+
+  if (bankProtected.length) {
+    console.log("--- BANK-CONFIRMED PROTECTED (" + bankProtected.length + ") ---");
+    console.log("  (CSV tried to change status but bank already confirmed Cleared)");
+    for (const r of bankProtected) {
+      console.log("  ! " + r.checkNumber + " | " + r.payee + " | CSV: \"" + r.csvStatus + "\" | Kept: Cleared");
+    }
+    console.log("");
+  }
+
+  if (newCheckIssues.length) {
+    console.log("--- BOA: CHECK ISSUES / add_Issue (" + newCheckIssues.length + ") ---");
+    for (const r of newCheckIssues) {
+      console.log("  >> " + r.checkNumber + " | " + r.payee + " | $" + r.amount + " | " + r.issueDate);
+    }
+    console.log("");
+  }
+
+  if (cancelCheckIssues.length) {
+    console.log("--- BOA: CHECK CANCELS / cancel_Issue (" + cancelCheckIssues.length + ") ---");
+    for (const r of cancelCheckIssues) {
+      console.log("  XX " + r.checkNumber + " | " + r.payee + " | $" + r.amount + " | " + r.issueDate);
+    }
+    console.log("");
+  }
+
+  console.log("=== TOTALS ===");
+  console.log("New DB records:      " + newRecords.length);
+  console.log("Status updates:      " + statusChanges.length);
+  console.log("Status-protected:    " + statusProtected.length);
+  console.log("Bank-protected:      " + bankProtected.length);
+  console.log("BoA add_Issue:       " + newCheckIssues.length);
+  console.log("BoA cancel_Issue:    " + cancelCheckIssues.length);
+  console.log("Unchanged:           " + noChangeCount);
+})();
diff --git a/scripts/seed-bank-status.js b/scripts/seed-bank-status.js
index 5ad1045..2e7449d 100644
--- a/scripts/seed-bank-status.js
+++ b/scripts/seed-bank-status.js
@@ -52,7 +52,7 @@ function toISODate(dateStr) {
   return null;
 }
 
-async function updateStatus(checkNumber, status, paidDate) {
+async function updateStatus(checkNumber, status, { paidDate, amount, issueDate, method } = {}) {
   const pk = `payment#${checkNumber}`;
   const expr = ["#status = :s"];
   const names = { "#status": "status" };
@@ -62,6 +62,23 @@ async function updateStatus(checkNumber, status, paidDate) {
     expr.push("paid_date = :pd");
     values[":pd"] = paidDate;
   }
+  if (amount != null) {
+    expr.push("amount_usd = :amt");
+    values[":amt"] = amount;
+  }
+  if (issueDate) {
+    expr.push("send_payment_on = :sd");
+    values[":sd"] = issueDate;
+  }
+  if (checkNumber) {
+    expr.push("check_number = :cn");
+    values[":cn"] = checkNumber;
+  }
+  if (method) {
+    expr.push("#method = :m");
+    names["#method"] = "method";
+    values[":m"] = method;
+  }
 
   await ddb.send(
     new UpdateCommand({
@@ -87,7 +104,9 @@ async function main() {
     for (const row of rows) {
       const checkNumber = row[0]?.trim();
       if (!checkNumber) continue;
-      statusMap.set(checkNumber, { status: "Issued", paidDate: null });
+      const amount = parseFloat(String(row[4] || "0").replace(/,/g, ""));
+      const issueDate = row[1]?.trim() || null;
+      statusMap.set(checkNumber, { status: "Issued", paidDate: null, amount: isNaN(amount) ? 0 : amount, issueDate, method: "Check" });
     }
     console.log(`  ${rows.length} positive pay entries`);
   }
@@ -99,7 +118,18 @@ async function main() {
     for (const row of rows) {
       const checkNumber = (row["Check Number"] || "").trim();
       if (!checkNumber) continue;
-      statusMap.set(checkNumber, { status: "Outstanding", paidDate: null });
+      const amount = parseFloat(String(row["Amount"] || "0").replace(/,/g, ""));
+      const rawDate = (row["Issue Date"] || "").trim();
+      // Normalize 2-digit year to 4-digit: "12/10/24" → "12/10/2024"
+      let issueDate = rawDate || null;
+      if (rawDate) {
+        const parts = rawDate.split("/");
+        if (parts.length === 3 && parts[2].length === 2) {
+          parts[2] = `20${parts[2]}`;
+          issueDate = parts.join("/");
+        }
+      }
+      statusMap.set(checkNumber, { status: "Outstanding", paidDate: null, amount: isNaN(amount) ? 0 : amount, issueDate, method: "Check" });
     }
     console.log(`  ${rows.length} outstanding entries`);
   }
@@ -120,15 +150,16 @@ async function main() {
       }
       seen.add(checkNumber);
       const paidDate = toISODate(row["Paid Date"] || row["CD Volume Number"] || "");
-      statusMap.set(checkNumber, { status: "Cleared", paidDate });
+      const amount = parseFloat(String(row["Amount"] || "0").replace(/,/g, ""));
+      statusMap.set(checkNumber, { status: "Cleared", paidDate, amount: isNaN(amount) ? 0 : amount });
     }
     console.log(`  ${seen.size} unique cleared checks (${deduped} duplicates skipped)`);
   }
 
   // Write to DynamoDB
   let count = 0;
-  for (const [checkNumber, { status, paidDate }] of statusMap) {
-    await updateStatus(checkNumber, status, paidDate);
+  for (const [checkNumber, { status, paidDate, amount, issueDate, method }] of statusMap) {
+    await updateStatus(checkNumber, status, { paidDate, amount, issueDate, method });
     count++;
   }
 
diff --git a/scripts/test-boa-prod.js b/scripts/test-boa-prod.js
new file mode 100644
index 0000000..ad9606f
--- /dev/null
+++ b/scripts/test-boa-prod.js
@@ -0,0 +1,130 @@
+/**
+ * Dry-run test for BoA CashPro production API connectivity.
+ * 1. Authenticates with both Check Management and Reporting credentials
+ * 2. Calls Previous Day Transaction Inquiry (read-only)
+ * 3. Does NOT issue or cancel any checks
+ *
+ * Usage:
+ *   node scripts/test-boa-prod.js
+ */
+
+import { SSMClient, GetParameterCommand } from "@aws-sdk/client-ssm";
+
+const ssm = new SSMClient();
+const BASE_URL = "https://api.bofa.com";
+
+async function getSSMParam(name) {
+  const { Parameter } = await ssm.send(
+    new GetParameterCommand({ Name: name, WithDecryption: true })
+  );
+  return Parameter.Value;
+}
+
+async function getAccessToken(applicationID, clientId, clientSecret) {
+  console.log(`  Requesting token for ${applicationID}...`);
+
+  const res = await fetch(`${BASE_URL}/authn/v1/client-authentication`, {
+    method: "POST",
+    headers: { "Content-Type": "application/json" },
+    body: JSON.stringify({
+      applicationID,
+      authn: { client_id: clientId, client_secret: clientSecret },
+    }),
+  });
+
+  const text = await res.text();
+  console.log(`  Auth response (${res.status}):`, text, "\n");
+
+  if (!res.ok) {
+    throw new Error(`Auth failed for ${applicationID}: ${res.status} - ${text}`);
+  }
+
+  const data = JSON.parse(text);
+  return data.access_token;
+}
+
+async function main() {
+  console.log("Loading credentials from SSM...\n");
+
+  const [
+    checkMgmtAppId,
+    checkMgmtClientId,
+    checkMgmtSecret,
+    reportingAppId,
+    reportingClientId,
+    reportingSecret,
+    accountNumber,
+    bankId,
+  ] = await Promise.all([
+    getSSMParam("/payments-dashboard/boa-check-mgmt-app-id"),
+    getSSMParam("/payments-dashboard/boa-check-mgmt-client-id"),
+    getSSMParam("/payments-dashboard/boa-check-mgmt-token"),
+    getSSMParam("/payments-dashboard/boa-reporting-app-id"),
+    getSSMParam("/payments-dashboard/boa-account-info-client-id"),
+    getSSMParam("/payments-dashboard/boa-account-info-token"),
+    getSSMParam("/payments-dashboard/boa-account-number"),
+    getSSMParam("/payments-dashboard/boa-bank-id"),
+  ]);
+
+  console.log("Credentials loaded.\n");
+
+  // --- Step 1: OAuth for Check Management ---
+  console.log("=".repeat(60));
+  console.log("STEP 1: OAuth — Check Management");
+  console.log("=".repeat(60));
+  console.log();
+
+  const checkMgmtToken = await getAccessToken(checkMgmtAppId, checkMgmtClientId, checkMgmtSecret);
+  console.log("  ✓ Check Management token acquired\n");
+
+  // --- Step 2: OAuth for Reporting ---
+  console.log("=".repeat(60));
+  console.log("STEP 2: OAuth — Reporting");
+  console.log("=".repeat(60));
+  console.log();
+
+  const reportingToken = await getAccessToken(reportingAppId, reportingClientId, reportingSecret);
+  console.log("  ✓ Reporting token acquired\n");
+
+  // --- Step 3: Previous Day Transaction Inquiry (read-only) ---
+  console.log("=".repeat(60));
+  console.log("STEP 3: Previous Day Transaction Inquiry (read-only)");
+  console.log("=".repeat(60));
+
+  const yesterday = new Date();
+  yesterday.setDate(yesterday.getDate() - 1);
+  const dateStr = yesterday.toISOString().split("T")[0];
+
+  const inquiryPayload = {
+    fromDate: dateStr,
+    toDate: dateStr,
+    accounts: [{ accountNumber, bankId }],
+  };
+
+  console.log("Request:", JSON.stringify(inquiryPayload, null, 2), "\n");
+
+  const inquiryRes = await fetch(
+    `${BASE_URL}/cashpro/reporting/v1/transaction-inquiries/previous-day`,
+    {
+      method: "POST",
+      headers: {
+        "Content-Type": "application/json",
+        Authorization: `Bearer ${reportingToken}`,
+      },
+      body: JSON.stringify(inquiryPayload),
+    }
+  );
+
+  const inquiryText = await inquiryRes.text();
+  console.log("Status:", inquiryRes.status);
+  console.log("Response:", inquiryText);
+
+  console.log("\n" + "=".repeat(60));
+  console.log("Dry run complete. No checks were issued or cancelled.");
+  console.log("=".repeat(60));
+}
+
+main().catch((err) => {
+  console.error("Fatal error:", err);
+  process.exit(1);
+});
diff --git a/scripts/test-boa-sandbox.js b/scripts/test-boa-sandbox.js
new file mode 100644
index 0000000..3e93e30
--- /dev/null
+++ b/scripts/test-boa-sandbox.js
@@ -0,0 +1,192 @@
+/**
+ * One-off script to test BoA CashPro sandbox API connectivity.
+ * Reads credentials from SSM Parameter Store, exchanges them for
+ * OAuth Bearer tokens, then makes test API calls to both Check
+ * Management and Reporting APIs.
+ *
+ * Prints full responses so you can capture the client ID, timestamp,
+ * and transactionIdentification for BoA production onboarding.
+ *
+ * Usage:
+ *   node scripts/test-boa-sandbox.js
+ */
+
+import { SSMClient, GetParameterCommand } from "@aws-sdk/client-ssm";
+
+const ssm = new SSMClient();
+const SANDBOX_BASE = "https://api-sb.bofa.com";
+const AUTH_URL = `${SANDBOX_BASE}/authn/v1/client-authentication`;
+
+async function getSSMParam(name) {
+  const { Parameter } = await ssm.send(
+    new GetParameterCommand({ Name: name, WithDecryption: true })
+  );
+  return Parameter.Value;
+}
+
+async function getAccessToken(applicationID, clientId, clientSecret) {
+  console.log(`  Requesting token for ${applicationID}...`);
+
+  const res = await fetch(AUTH_URL, {
+    method: "POST",
+    headers: { "Content-Type": "application/json" },
+    body: JSON.stringify({
+      applicationID,
+      authn: {
+        client_id: clientId,
+        client_secret: clientSecret,
+      },
+    }),
+  });
+
+  const text = await res.text();
+  console.log(`  Auth response (${res.status}):`, text, "\n");
+
+  if (!res.ok) {
+    throw new Error(`Auth failed for ${applicationID}: ${res.status} - ${text}`);
+  }
+
+  const data = JSON.parse(text);
+  return data.access_token;
+}
+
+async function main() {
+  console.log("Loading credentials from SSM...\n");
+
+  const [
+    checkMgmtClientId,
+    checkMgmtSecret,
+    accountInfoClientId,
+    accountInfoSecret,
+    accountNumber,
+    companyId,
+  ] = await Promise.all([
+    getSSMParam("/payments-dashboard/boa-check-mgmt-client-id"),
+    getSSMParam("/payments-dashboard/boa-check-mgmt-token"),
+    getSSMParam("/payments-dashboard/boa-account-info-client-id"),
+    getSSMParam("/payments-dashboard/boa-account-info-token"),
+    getSSMParam("/payments-dashboard/boa-account-number"),
+    getSSMParam("/payments-dashboard/boa-company-id"),
+  ]);
+
+  console.log("Credentials loaded.\n");
+
+  // --- Step 1: Get OAuth tokens for both APIs ---
+  console.log("=".repeat(60));
+  console.log("STEP 1: OAuth Token Exchange");
+  console.log("=".repeat(60));
+
+  console.log("\n[Check Management]");
+  const checkMgmtBearerToken = await getAccessToken(
+    "app_SeaHavenIndustries_Checkmanagement_SB",
+    checkMgmtClientId,
+    checkMgmtSecret
+  );
+
+  console.log("[Account Info / Reporting]");
+  const accountInfoBearerToken = await getAccessToken(
+    "app_SeaHavenIndustries_Reporting_SB",
+    accountInfoClientId,
+    accountInfoSecret
+  );
+
+  console.log("Both tokens acquired.\n");
+
+  // --- Step 2: Check Issue (add_Issue with a test check) ---
+  console.log("=".repeat(60));
+  console.log("TEST 1: Check Issue (add_Issue)");
+  console.log("=".repeat(60));
+
+  const issuePayload = {
+    issueList: [
+      {
+        accountNumber,
+        issueAction: "add_Issue",
+        checkNumber: "999999",
+        amount: "1.00",
+        issueDate: new Date().toISOString().split("T")[0],
+        payee: "Sandbox Test",
+      },
+    ],
+  };
+
+  console.log("Request:", JSON.stringify(issuePayload, null, 2), "\n");
+
+  try {
+    const issueRes = await fetch(
+      `${SANDBOX_BASE}/cashpro/checkmanagement/v1/check-issues`,
+      {
+        method: "POST",
+        headers: {
+          "Content-Type": "application/json",
+          Authorization: `Bearer ${checkMgmtBearerToken}`,
+          companyId,
+        },
+        body: JSON.stringify(issuePayload),
+      }
+    );
+
+    const issueHeaders = Object.fromEntries(issueRes.headers.entries());
+    const issueText = await issueRes.text();
+
+    console.log("Status:", issueRes.status);
+    console.log("Response Headers:", JSON.stringify(issueHeaders, null, 2));
+    console.log("Response Body:", issueText);
+  } catch (err) {
+    console.error("Check Issue request failed:", err.message);
+  }
+
+  // --- Step 3: Previous Day Transaction Inquiry ---
+  console.log("\n" + "=".repeat(60));
+  console.log("TEST 2: Previous Day Transaction Inquiry");
+  console.log("=".repeat(60));
+
+  const yesterday = new Date();
+  yesterday.setDate(yesterday.getDate() - 1);
+  const dateStr = yesterday.toISOString().split("T")[0];
+
+  const inquiryPayload = {
+    fromDate: dateStr,
+    toDate: dateStr,
+    accounts: [
+      {
+        accountNumber,
+        bankId: "021000322",
+      },
+    ],
+  };
+
+  console.log("Request:", JSON.stringify(inquiryPayload, null, 2), "\n");
+
+  try {
+    const inquiryRes = await fetch(
+      `${SANDBOX_BASE}/cashpro/reporting/v1/transaction-inquiries/previous-day`,
+      {
+        method: "POST",
+        headers: {
+          "Content-Type": "application/json",
+          Authorization: `Bearer ${accountInfoBearerToken}`,
+        },
+        body: JSON.stringify(inquiryPayload),
+      }
+    );
+
+    const inquiryHeaders = Object.fromEntries(inquiryRes.headers.entries());
+    const inquiryText = await inquiryRes.text();
+
+    console.log("Status:", inquiryRes.status);
+    console.log("Response Headers:", JSON.stringify(inquiryHeaders, null, 2));
+    console.log("Response Body:", inquiryText);
+  } catch (err) {
+    console.error("Transaction Inquiry request failed:", err.message);
+  }
+
+  console.log("\n" + "=".repeat(60));
+  console.log("Done. Look for: client ID, timestamp, transactionIdentification");
+  console.log("=".repeat(60));
+}
+
+main().catch((err) => {
+  console.error("Fatal error:", err);
+  process.exit(1);
+});
diff --git a/src/fetchBoaTransactions.js b/src/fetchBoaTransactions.js
new file mode 100644
index 0000000..a891fee
--- /dev/null
+++ b/src/fetchBoaTransactions.js
@@ -0,0 +1,145 @@
+import { DynamoDBClient } from "@aws-sdk/client-dynamodb";
+import { DynamoDBDocumentClient, ScanCommand, UpdateCommand } from "@aws-sdk/lib-dynamodb";
+import { SSMClient, GetParameterCommand } from "@aws-sdk/client-ssm";
+
+const ddb = DynamoDBDocumentClient.from(new DynamoDBClient());
+const ssm = new SSMClient();
+const TABLE_NAME = process.env.TABLE_NAME;
+const BOA_BASE_URL = process.env.BOA_BASE_URL;
+
+async function getSSMParam(name) {
+  const { Parameter } = await ssm.send(
+    new GetParameterCommand({ Name: name, WithDecryption: true })
+  );
+  return Parameter.Value;
+}
+
+async function getAccessToken(applicationID, clientId, clientSecret) {
+  const res = await fetch(`${BOA_BASE_URL}/authn/v1/client-authentication`, {
+    method: "POST",
+    headers: { "Content-Type": "application/json" },
+    body: JSON.stringify({
+      applicationID,
+      authn: { client_id: clientId, client_secret: clientSecret },
+    }),
+  });
+
+  if (!res.ok) {
+    const text = await res.text();
+    throw new Error(`OAuth token exchange failed: ${res.status} - ${text}`);
+  }
+
+  const data = await res.json();
+  return data.access_token;
+}
+
+export const handler = async () => {
+  const [appId, clientId, clientSecret, accountNumber, bankId] = await Promise.all([
+    getSSMParam(process.env.BOA_REPORTING_APP_ID_PARAM),
+    getSSMParam(process.env.BOA_REPORTING_CLIENT_ID_PARAM),
+    getSSMParam(process.env.BOA_REPORTING_SECRET_PARAM),
+    getSSMParam(process.env.BOA_ACCOUNT_NUMBER_PARAM),
+    getSSMParam(process.env.BOA_BANK_ID_PARAM),
+  ]);
+
+  const bearerToken = await getAccessToken(appId, clientId, clientSecret);
+
+  // Get yesterday's date in YYYY-MM-DD
+  const yesterday = new Date();
+  yesterday.setDate(yesterday.getDate() - 1);
+  const dateStr = yesterday.toISOString().split("T")[0];
+
+  // Call CashPro Previous Day Transaction Inquiry
+  const res = await fetch(`${BOA_BASE_URL}/cashpro/reporting/v1/transaction-inquiries/previous-day`, {
+    method: "POST",
+    headers: {
+      "Content-Type": "application/json",
+      Authorization: `Bearer ${bearerToken}`,
+    },
+    body: JSON.stringify({
+      fromDate: dateStr,
+      toDate: dateStr,
+      accounts: [{ accountNumber, bankId }],
+    }),
+  });
+
+  if (!res.ok) {
+    const text = await res.text();
+    throw new Error(`BoA API error ${res.status}: ${text}`);
+  }
+
+  const data = await res.json();
+
+  // Response shape: { accountTransactions: [{ accountNumber, bankId, currency, transactions: [...] }] }
+  const allTransactions = (data.accountTransactions || []).flatMap(
+    (acct) => acct.transactions || []
+  );
+
+  // Filter for cleared checks (475) and returned checks (255)
+  const relevant = allTransactions.filter(
+    (t) => t.transactionCode === "475" || t.transactionCode === "255"
+  );
+
+  if (!relevant.length) {
+    console.log(`No check transactions (475/255) found for ${dateStr}`);
+    return { statusCode: 200, body: `No relevant transactions for ${dateStr}` };
+  }
+
+  // Load all check payments from DynamoDB to match against
+  const payments = [];
+  let lastKey;
+  do {
+    const result = await ddb.send(
+      new ScanCommand({
+        TableName: TABLE_NAME,
+        FilterExpression: "begins_with(pk, :prefix) AND #m = :method",
+        ExpressionAttributeNames: { "#m": "method" },
+        ExpressionAttributeValues: { ":prefix": "payment#", ":method": "Check" },
+        ExclusiveStartKey: lastKey,
+      })
+    );
+    payments.push(...result.Items);
+    lastKey = result.LastEvaluatedKey;
+  } while (lastKey);
+
+  let matched = 0;
+
+  for (const txn of relevant) {
+    const custRef = (txn.customerReference || "").replace(/^0+/, "");
+    const bankRef = txn.bankReference || "";
+
+    // Match customerReference (check number with leading zeros stripped) to our check_number
+    const matchedPayment = payments.find((p) =>
+      p.check_number && p.check_number === custRef
+    );
+
+    if (!matchedPayment) {
+      console.log(`No match for customerReference: ${txn.customerReference} (bankRef: ${bankRef})`);
+      continue;
+    }
+
+    const clearStatus = txn.transactionCode === "475" ? "Cleared" : "Returned";
+
+    await ddb.send(
+      new UpdateCommand({
+        TableName: TABLE_NAME,
+        Key: { pk: matchedPayment.pk },
+        UpdateExpression: "SET clear_status = :status, bank_reference = :ref, cleared_date = :date",
+        ExpressionAttributeValues: {
+          ":status": clearStatus,
+          ":ref": bankRef,
+          ":date": txn.valueDate || dateStr,
+        },
+      })
+    );
+
+    matched++;
+    console.log(`${clearStatus}: check ${matchedPayment.check_number} (bankRef: ${bankRef})`);
+  }
+
+  console.log(`Processed ${relevant.length} transactions, matched ${matched} payments`);
+  return {
+    statusCode: 200,
+    body: `${matched} of ${relevant.length} transactions matched to payments`,
+  };
+};
diff --git a/src/processPaymentCsv.js b/src/processPaymentCsv.js
index 7b0492d..f8fdb41 100644
--- a/src/processPaymentCsv.js
+++ b/src/processPaymentCsv.js
@@ -1,11 +1,40 @@
 import { S3Client, GetObjectCommand } from "@aws-sdk/client-s3";
 import { DynamoDBClient } from "@aws-sdk/client-dynamodb";
-import { DynamoDBDocumentClient, UpdateCommand, PutCommand } from "@aws-sdk/lib-dynamodb";
+import { DynamoDBDocumentClient, GetCommand, PutCommand, UpdateCommand } from "@aws-sdk/lib-dynamodb";
+import { SSMClient, GetParameterCommand } from "@aws-sdk/client-ssm";
 import { parse } from "csv-parse/sync";
 
 const s3 = new S3Client();
 const ddb = DynamoDBDocumentClient.from(new DynamoDBClient());
+const ssm = new SSMClient();
 const TABLE_NAME = process.env.TABLE_NAME;
+const BOA_BASE_URL = process.env.BOA_BASE_URL;
+
+async function getSSMParam(name) {
+  const { Parameter } = await ssm.send(
+    new GetParameterCommand({ Name: name, WithDecryption: true })
+  );
+  return Parameter.Value;
+}
+
+async function getAccessToken(applicationID, clientId, clientSecret) {
+  const res = await fetch(`${BOA_BASE_URL}/authn/v1/client-authentication`, {
+    method: "POST",
+    headers: { "Content-Type": "application/json" },
+    body: JSON.stringify({
+      applicationID,
+      authn: { client_id: clientId, client_secret: clientSecret },
+    }),
+  });
+
+  if (!res.ok) {
+    const text = await res.text();
+    throw new Error(`OAuth token exchange failed: ${res.status} - ${text}`);
+  }
+
+  const data = await res.json();
+  return data.access_token;
+}
 
 // Convert MM/DD/YYYY to YYYY-MM-DD
 function toISODate(mdyDate) {
@@ -46,7 +75,20 @@ export const handler = async (event) => {
 
   const cancelStatuses = ["voided", "cancelled", "canceled", "marked as void"];
 
-  // Upsert each payment
+  // Status progression ranks — higher number = further along in lifecycle
+  // Once a payment reaches a higher rank, CSV cannot move it backward
+  const statusRank = {
+    "scheduled": 1,
+    "payment submitted": 2,
+    "issued": 3,
+    "outstanding": 4,
+    "cleared": 5,
+  };
+
+  const newChecks = [];
+  const cancelChecks = [];
+
+  // Upsert each payment, tracking new and cancelled checks
   let count = 0;
   for (const row of normalizedRows) {
     const checkNumber = (row["Check Number"] || "").trim();
@@ -67,6 +109,31 @@ export const handler = async (event) => {
 
     const pk = `payment#${checkNumber}`;
 
+    // Check if record already exists (for detecting new vs updated)
+    const { Item: existing } = await ddb.send(
+      new GetCommand({ TableName: TABLE_NAME, Key: { pk } })
+    );
+
+    // Don't overwrite status once the bank has confirmed it as Cleared
+    const bankConfirmed = existing?.clear_status === "Cleared";
+    if (bankConfirmed) {
+      status = "Cleared";
+    }
+
+    // Status progression protection — never allow status to move backward
+    if (existing) {
+      const oldRank = statusRank[(existing.status || "").toLowerCase()] || 0;
+      const newRank = statusRank[status.toLowerCase()] || 0;
+
+      if (oldRank === 5) {
+        // Cleared is permanent — cannot be voided, cancelled, or anything else
+        status = existing.status;
+      } else if (newRank < oldRank && !cancelStatuses.includes(status.toLowerCase())) {
+        // Non-cancel status regression — keep the existing (higher) status
+        status = existing.status;
+      }
+    }
+
     await ddb.send(
       new UpdateCommand({
         TableName: TABLE_NAME,
@@ -98,6 +165,86 @@ export const handler = async (event) => {
       })
     );
     count++;
+
+    // Only process checks for CashPro
+    if (method !== "Check") continue;
+
+    if (!existing) {
+      // New check → issue
+      newChecks.push({
+        checkNumber,
+        amount: parseAmount(row["Amount in USD"]).toFixed(2),
+        issueDate: toISODate(sendOn),
+      });
+    } else if (
+      cancelStatuses.includes(status.toLowerCase()) &&
+      !cancelStatuses.includes((existing.status || "").toLowerCase())
+    ) {
+      // Existing check now voided/cancelled → cancel
+      cancelChecks.push({
+        checkNumber,
+        amount: parseAmount(row["Amount in USD"]).toFixed(2),
+        issueDate: toISODate(sendOn),
+      });
+    }
+  }
+
+  // Submit to CashPro if there are any new issues or cancels
+  if (newChecks.length || cancelChecks.length) {
+    const [appId, clientId, clientSecret, accountNumber, companyId] = await Promise.all([
+      getSSMParam(process.env.BOA_CHECK_MGMT_APP_ID_PARAM),
+      getSSMParam(process.env.BOA_CHECK_MGMT_CLIENT_ID_PARAM),
+      getSSMParam(process.env.BOA_CHECK_MGMT_SECRET_PARAM),
+      getSSMParam(process.env.BOA_ACCOUNT_NUMBER_PARAM),
+      getSSMParam(process.env.BOA_COMPANY_ID_PARAM),
+    ]);
+
+    const bearerToken = await getAccessToken(appId, clientId, clientSecret);
+
+    const submitToBoA = async (items, action) => {
+      const issueList = items.map((item) => ({
+        accountNumber,
+        issueAction: action,
+        checkNumber: item.checkNumber,
+        amount: item.amount,
+        issueDate: item.issueDate,
+      }));
+
+      const res = await fetch(
+        `${BOA_BASE_URL}/cashpro/checkmanagement/v1/check-issues`,
+        {
+          method: "POST",
+          headers: {
+            "Content-Type": "application/json",
+            Authorization: `Bearer ${bearerToken}`,
+            companyId,
+          },
+          body: JSON.stringify({ issueList }),
+        }
+      );
+
+      const text = await res.text();
+
+      if (!res.ok) {
+        console.error(`BoA ${action} error ${res.status}:`, text);
+        throw new Error(`BoA ${action} failed: ${res.status}`);
+      }
+
+      const data = JSON.parse(text);
+
+      console.log(
+        `BoA ${action}: ${data.processedItems}/${data.totalItems} processed, ${data.unprocessedItems} failed`
+      );
+      return data;
+    };
+
+    if (newChecks.length) {
+      await submitToBoA(newChecks, "add_Issue");
+    }
+
+    if (cancelChecks.length) {
+      await submitToBoA(cancelChecks, "cancel_Issue");
+    }
   }
 
   // Update metadata record
@@ -113,6 +260,11 @@ export const handler = async (event) => {
     })
   );
 
-  console.log(`Upserted ${count} payments from ${key}`);
-  return { statusCode: 200, body: `Upserted ${count} payments` };
+  console.log(
+    `Upserted ${count} payments, ${newChecks.length} issued, ${cancelChecks.length} cancelled`
+  );
+  return {
+    statusCode: 200,
+    body: `Upserted ${count}, issued ${newChecks.length}, cancelled ${cancelChecks.length}`,
+  };
 };
diff --git a/template.yaml b/template.yaml
index 384e817..4cc4d5a 100644
--- a/template.yaml
+++ b/template.yaml
@@ -132,6 +132,14 @@ Resources:
       FunctionName: payments-processPaymentCsv
       Handler: src/processPaymentCsv.handler
       Timeout: 120
+      Environment:
+        Variables:
+          BOA_BASE_URL: https://api.bofa.com
+          BOA_CHECK_MGMT_APP_ID_PARAM: /payments-dashboard/boa-check-mgmt-app-id
+          BOA_CHECK_MGMT_CLIENT_ID_PARAM: /payments-dashboard/boa-check-mgmt-client-id
+          BOA_CHECK_MGMT_SECRET_PARAM: /payments-dashboard/boa-check-mgmt-token
+          BOA_ACCOUNT_NUMBER_PARAM: /payments-dashboard/boa-account-number
+          BOA_COMPANY_ID_PARAM: /payments-dashboard/boa-company-id
       VpcConfig:
         SubnetIds:
           - !Ref PrivateSubnet
@@ -153,6 +161,16 @@ Resources:
             BucketName: !Sub seahaven-payments-csv-${AWS::AccountId}
         - DynamoDBCrudPolicy:
             TableName: !Ref DashboardTable
+        - SSMParameterReadPolicy:
+            ParameterName: payments-dashboard/boa-check-mgmt-app-id
+        - SSMParameterReadPolicy:
+            ParameterName: payments-dashboard/boa-check-mgmt-client-id
+        - SSMParameterReadPolicy:
+            ParameterName: payments-dashboard/boa-check-mgmt-token
+        - SSMParameterReadPolicy:
+            ParameterName: payments-dashboard/boa-account-number
+        - SSMParameterReadPolicy:
+            ParameterName: payments-dashboard/boa-company-id
         - Version: "2012-10-17"
           Statement:
             - Effect: Allow
@@ -195,6 +213,54 @@ Resources:
                 - ec2:DeleteNetworkInterface
               Resource: "*"
 
+  FetchBoaTransactionsFunction:
+    Type: AWS::Serverless::Function
+    Properties:
+      FunctionName: payments-fetchBoaTransactions
+      Handler: src/fetchBoaTransactions.handler
+      Timeout: 60
+      VpcConfig:
+        SubnetIds:
+          - !Ref PrivateSubnet
+        SecurityGroupIds:
+          - !Ref LambdaSecurityGroup
+      Environment:
+        Variables:
+          BOA_BASE_URL: https://api.bofa.com
+          BOA_REPORTING_APP_ID_PARAM: /payments-dashboard/boa-reporting-app-id
+          BOA_REPORTING_CLIENT_ID_PARAM: /payments-dashboard/boa-account-info-client-id
+          BOA_REPORTING_SECRET_PARAM: /payments-dashboard/boa-account-info-token
+          BOA_ACCOUNT_NUMBER_PARAM: /payments-dashboard/boa-account-number
+          BOA_BANK_ID_PARAM: /payments-dashboard/boa-bank-id
+      Events:
+        DailySchedule:
+          Type: Schedule
+          Properties:
+            Schedule: cron(0 13 ? * MON-FRI *)
+            Description: Fetch BoA previous day transactions at 9am ET (13:00 UTC)
+            Enabled: true
+      Policies:
+        - DynamoDBCrudPolicy:
+            TableName: !Ref DashboardTable
+        - SSMParameterReadPolicy:
+            ParameterName: payments-dashboard/boa-reporting-app-id
+        - SSMParameterReadPolicy:
+            ParameterName: payments-dashboard/boa-account-info-client-id
+        - SSMParameterReadPolicy:
+            ParameterName: payments-dashboard/boa-account-info-token
+        - SSMParameterReadPolicy:
+            ParameterName: payments-dashboard/boa-account-number
+        - SSMParameterReadPolicy:
+            ParameterName: payments-dashboard/boa-bank-id
+        - Version: "2012-10-17"
+          Statement:
+            - Effect: Allow
+              Action:
+                - ec2:CreateNetworkInterface
+                - ec2:DescribeNetworkInterfaces
+                - ec2:DeleteNetworkInterface
+              Resource: "*"
+
 Outputs:
   SlackEventUrl:
     Description: URL to set as the Slack app Request URL