WalletPass Notification API Returns 200 but No Push Notification Received

Problem:
When using the WalletPass Notification API to push updates to a pass, the API returns a 200 OK response, indicating success. However, no push notification is actually delivered to the WalletPass app, and the pass does not update as expected.

Expected Behavior:
A notification should be sent to the WalletPass app, prompting the pass to refresh and display updated information.

Actual Behavior:
The API call returns a successful response (HTTP 200), but no notification appears, and the pass remains unchanged.

Steps to Reproduce:

Send a POST request to the WalletPass Notification API endpoint with a valid pushToken or serialNumber.

Observe that the response is 200 OK.

Check the WalletPass app — no notification or pass update occurs.

Additional Notes:

The issue is reproducible with multiple passes.

The payload and authentication are confirmed valid.

No error or failure message is returned by the API.