diff --git a/src/domain/team-members/mappers/team-member-mapper.ts b/src/domain/team-members/mappers/team-member-mapper.ts
index d283da28..de1652ba 100644
--- a/src/domain/team-members/mappers/team-member-mapper.ts
+++ b/src/domain/team-members/mappers/team-member-mapper.ts
@@ -88,9 +88,12 @@ export function mapTeamMemberListItems(rawItems: unknown[]): TeamMemberListItem[
 export function mapTeamMemberDetail(raw: unknown): TeamMemberDetail {
   const record = (typeof raw === "object" && raw !== null ? raw : {}) as Record<string, unknown>;
   const listItem = mapTeamMemberListItem(record);
+  // Present only on an update that re-sent a pending member's invite.
+  const inviteEmailSent = record.inviteEmailSent ?? record.InviteEmailSent;
   return {
     ...listItem,
     serviceAreas: readStringArray(record, "serviceAreas", "ServiceAreas"),
     permissions: readPermissions(record),
+    ...(typeof inviteEmailSent === "boolean" && { inviteEmailSent }),
   };
 }
diff --git a/src/domain/team-members/types/team-member.ts b/src/domain/team-members/types/team-member.ts
index 6faa47c5..975eb697 100644
--- a/src/domain/team-members/types/team-member.ts
+++ b/src/domain/team-members/types/team-member.ts
@@ -47,6 +47,8 @@ export interface TeamPermissionValue {
 export interface TeamMemberDetail extends TeamMemberListItem {
   serviceAreas: string[];
   permissions: TeamPermissionValue[];
+  /** Set only after an update that changed a pending member's email and re-sent their invite. */
+  inviteEmailSent?: boolean;
 }
 
 export interface UpdateTeamMemberInput {
diff --git a/src/domain/team-members/use-cases/use-team-member-detail.ts b/src/domain/team-members/use-cases/use-team-member-detail.ts
index 3622ab5c..c54b1f7c 100644
--- a/src/domain/team-members/use-cases/use-team-member-detail.ts
+++ b/src/domain/team-members/use-cases/use-team-member-detail.ts
@@ -23,6 +23,15 @@ export function useTeamMemberDetail(
   });
 }
 
+export const UPDATED_INVITE_EMAIL_FAILED_MESSAGE =
+  "Team member updated, but the invite to their new email couldn't be sent. Use Resend invite.";
+
+function updatedMessage(member: TeamMemberDetail): string {
+  return member.inviteEmailSent === true
+    ? `Team member updated. A new invite was sent to ${member.email}.`
+    : "Team member updated.";
+}
+
 interface UpdateVariables {
   id: string | number;
   input: UpdateTeamMemberInput;
@@ -36,7 +45,11 @@ export function useUpdateTeamMember(): UseMutationResult<TeamMemberDetail, Error
     onSuccess: (member) => {
       void queryClient.invalidateQueries({ queryKey: queryKeys.teamMembers.all });
       void queryClient.setQueryData(queryKeys.teamMembers.detail(member.id), member);
-      toast.success("Team member updated.");
+      if (member.inviteEmailSent === false) {
+        toast.warning(UPDATED_INVITE_EMAIL_FAILED_MESSAGE);
+        return;
+      }
+      toast.success(updatedMessage(member));
     },
     onError: (error: Error) => {
       toast.error(error.message || "Failed to update team member");
diff --git a/src/test/domain/team-members/team-member-mapper.test.ts b/src/test/domain/team-members/team-member-mapper.test.ts
index 164a2ef7..9073f169 100644
--- a/src/test/domain/team-members/team-member-mapper.test.ts
+++ b/src/test/domain/team-members/team-member-mapper.test.ts
@@ -54,4 +54,10 @@ describe("mapTeamMemberDetail", () => {
       ],
     });
   });
+
+  it("keeps the invite email result only when the update reported one", () => {
+    expect(mapTeamMemberDetail({ id: "u1", inviteEmailSent: false }).inviteEmailSent).toBe(false);
+    expect(mapTeamMemberDetail({ Id: "u1", InviteEmailSent: true }).inviteEmailSent).toBe(true);
+    expect(mapTeamMemberDetail({ id: "u1" })).not.toHaveProperty("inviteEmailSent");
+  });
 });
diff --git a/src/test/domain/team-members/use-update-team-member.test.tsx b/src/test/domain/team-members/use-update-team-member.test.tsx
new file mode 100644
index 00000000..aa7cc5a4
--- /dev/null
+++ b/src/test/domain/team-members/use-update-team-member.test.tsx
@@ -0,0 +1,72 @@
+import type { ReactNode } from "react";
+import { QueryClient, QueryClientProvider } from "@tanstack/react-query";
+import { act, renderHook, waitFor } from "@testing-library/react";
+import { toast } from "react-toastify";
+import { beforeEach, describe, expect, it, vi } from "vitest";
+
+import { teamMembersApi } from "@/domain/team-members/api/team-members-api";
+import type {
+  TeamMemberDetail,
+  UpdateTeamMemberInput,
+} from "@/domain/team-members/types/team-member";
+import {
+  UPDATED_INVITE_EMAIL_FAILED_MESSAGE,
+  useUpdateTeamMember,
+} from "@/domain/team-members/use-cases/use-team-member-detail";
+
+vi.mock("react-toastify", () => ({
+  toast: { success: vi.fn(), warning: vi.fn(), error: vi.fn() },
+}));
+
+vi.mock("@/domain/team-members/api/team-members-api", () => ({
+  teamMembersApi: { update: vi.fn() },
+}));
+
+const UPDATED = {
+  id: "user-7",
+  name: "Taylor Reed",
+  email: "taylor.reed@example.com",
+  pendingRegistration: true,
+  serviceAreas: ["East"],
+  permissions: [],
+} as unknown as TeamMemberDetail;
+
+function wrapper({ children }: { children: ReactNode }) {
+  const client = new QueryClient({ defaultOptions: { mutations: { retry: false } } });
+  return <QueryClientProvider client={client}>{children}</QueryClientProvider>;
+}
+
+async function update(updated: TeamMemberDetail) {
+  vi.mocked(teamMembersApi.update).mockResolvedValue(updated);
+  const { result } = renderHook(() => useUpdateTeamMember(), { wrapper });
+  act(() => result.current.mutate({ id: "user-7", input: {} as UpdateTeamMemberInput }));
+  await waitFor(() => expect(result.current.isSuccess).toBe(true));
+}
+
+describe("useUpdateTeamMember", () => {
+  beforeEach(() => {
+    vi.clearAllMocks();
+  });
+
+  it("confirms an ordinary update", async () => {
+    await update(UPDATED);
+
+    expect(toast.success).toHaveBeenCalledWith("Team member updated.");
+    expect(toast.warning).not.toHaveBeenCalled();
+  });
+
+  it("tells the admin a new invite went to the corrected email", async () => {
+    await update({ ...UPDATED, inviteEmailSent: true });
+
+    expect(toast.success).toHaveBeenCalledWith(
+      "Team member updated. A new invite was sent to taylor.reed@example.com.",
+    );
+  });
+
+  it("warns the admin to re-send when the new invite could not be emailed", async () => {
+    await update({ ...UPDATED, inviteEmailSent: false });
+
+    expect(toast.warning).toHaveBeenCalledWith(UPDATED_INVITE_EMAIL_FAILED_MESSAGE);
+    expect(toast.success).not.toHaveBeenCalled();
+  });
+});