Sending number is unavailable
The provider sender endpoint is unavailable.
- Code
sender-endpoint-unavailable
What to do now
- Review the account and Phone numbers in Channels. Confirm the selected number still exists and is ready to send.
Why this happens
- The provider cannot use the selected sending endpoint.
Before you retry
Repeating the unchanged operation will not resolve this condition. Complete the steps above first. Resend in Inbox creates a new message; use it only when another send is appropriate.