2026-04-27: Customer Service - contactEmail field cannot be unset once a value is present

Overview

The Customer Service has been updated so that the contactEmail field can no longer be unset through the customer profile partial update (PATCH) endpoints if it already contains a value. This restriction applies to both the customer-managed and tenant-managed API.

Updated endpoints

Endpoint	Description
Updating a customer profile (by customer)	The contactEmail field can no longer be unset once a value is present.
Updating a customer profile (by tenant)	The contactEmail field can no longer be unset once a value is present.

Known problems

There are no known problems.