21735: Unable to update Messaging Service Configuration due to Shared Sender

Inbound Webhook Configuration Not Allowed for Shared Numbers

You are attempting to change the inbound webhook settings for a phone number that is currently shared across multiple messaging services. This action is not permitted as shared numbers must maintain a consistent webhook configuration to ensure proper message routing and handling.

To modify the inbound webhook settings, please ensure that the phone number is not shared across different messaging services. If you need to update the webhook for a specific use case, consider using a dedicated phone number for that messaging service.