diff --git a/src/__tests__/notification-delivery-identity.test.ts b/src/__tests__/notification-delivery-identity.test.ts
new file mode 100644
index 000000000..2cf3a38c9
--- /dev/null
+++ b/src/__tests__/notification-delivery-identity.test.ts
@@ -0,0 +1,117 @@
+import { beforeEach, describe, expect, it, vi } from "vitest";
+
+vi.mock("@/lib/db", () => ({
+  prisma: {
+    notificationChannel: {
+      findMany: vi.fn(),
+      update: vi.fn(),
+      upsert: vi.fn(),
+    },
+    user: { findUnique: vi.fn() },
+    auditLog: { create: vi.fn() },
+  },
+}));
+
+vi.mock("@/lib/auth/audit", () => ({
+  auditLog: vi.fn(async () => undefined),
+}));
+
+vi.mock("@/lib/crypto", () => ({
+  decrypt: (value: string) => value,
+  encrypt: (value: string) => value,
+}));
+
+vi.mock("@/lib/logging/context", () => ({
+  getEvent: () => ({
+    addWarning: vi.fn(),
+    addMeta: vi.fn(),
+  }),
+}));
+
+const sendViaWebPushMock = vi.fn();
+
+vi.mock("@/lib/notifications/senders/apns", () => ({
+  sendViaApns: vi.fn(),
+}));
+vi.mock("@/lib/notifications/senders/email", () => ({
+  sendViaEmail: vi.fn(),
+}));
+vi.mock("@/lib/notifications/senders/ntfy", () => ({
+  sendViaNtfy: vi.fn(),
+}));
+vi.mock("@/lib/notifications/senders/telegram", () => ({
+  sendViaTelegram: vi.fn(),
+}));
+vi.mock("@/lib/notifications/senders/web-push", () => ({
+  sendViaWebPush: (...args: unknown[]) => sendViaWebPushMock(...args),
+}));
+vi.mock("@/lib/notifications/senders/webhook", () => ({
+  sendViaWebhook: vi.fn(),
+}));
+vi.mock("@/lib/notifications/senders/push-attempt-record", () => ({
+  recordPushAttempt: vi.fn(),
+}));
+
+import { prisma } from "@/lib/db";
+import { dispatchNotification } from "@/lib/notifications/dispatcher";
+
+const recordUserId = "managed-record";
+const recipientUserId = "guardian-recipient";
+
+beforeEach(() => {
+  vi.resetAllMocks();
+  vi.mocked(prisma.user.findUnique).mockImplementation(async (args) => {
+    const id = (args as { where: { id: string } }).where.id;
+    return id === recordUserId
+      ? ({ managedProfileAt: new Date() } as never)
+      : (null as never);
+  });
+  vi.mocked(prisma.notificationChannel.findMany).mockResolvedValue([
+    {
+      id: "recipient-channel",
+      userId: recipientUserId,
+      type: "WEB_PUSH",
+      config: "{}",
+      nextRetryAt: null,
+      preferences: [],
+    },
+  ] as never);
+  vi.mocked(prisma.notificationChannel.update).mockResolvedValue({
+    consecutiveFailures: 0,
+  } as never);
+  sendViaWebPushMock.mockResolvedValue({ ok: true });
+});
+
+describe("notification delivery identity", () => {
+  it("principal resolution uses the recipient channel for a managed record", async () => {
+    const outcome = await dispatchNotification({
+      eventType: "MEDICATION_REMINDER",
+      userId: recordUserId,
+      recordUserId,
+      recipientUserId,
+      title: "Record content",
+      message: "Record schedule",
+    });
+
+    expect(outcome).toEqual({
+      dispatched: true,
+      channelsAttempted: 1,
+      channelsSucceeded: 1,
+    });
+    expect(prisma.notificationChannel.findMany).toHaveBeenCalledWith(
+      expect.objectContaining({
+        where: { userId: recipientUserId, enabled: true },
+      }),
+    );
+    expect(sendViaWebPushMock).toHaveBeenCalledWith(
+      recipientUserId,
+      expect.objectContaining({
+        userId: recordUserId,
+        recordUserId,
+        recipientUserId,
+        title: "Record content",
+        message: "Record schedule",
+      }),
+    );
+  });
+});