"phone_number" on the Contact schema is now optional and nullable

Broker API

The phone_number field on the Contact schema is no longer required and can now be null. The property remains defined, but accounts may have no phone number, so responses can return phone_number as null.

Affected Endpoints

• POST /v1/accounts
• GET /v1/accounts/{account_id}
• GET /v1/accounts
• PATCH /v1/accounts/{account_id}