21734: The number cannot be shared at this time due to specific conditions not being met

US10DLC Number Sharing Not Supported

You are attempting to share a US10DLC phone number across different messaging services. This action is not supported due to regulatory requirements for A2P 10DLC messaging in the United States.

Please use an alternative type of phone number, such as a Toll-Free or Short Code number, for sharing across messaging services. Ensure that you comply with all A2P 10DLC registration requirements for each number used. For further assistance and information on number types that support sharing, please refer to our documentation or contact support.