E12004 — SMSTLSVersionNotSupported
TLS 1.3 is required to send to this destination.
- HTTP status:
422 - Type:
validation_error - Name:
SMSTLSVersionNotSupported
What to do
Check that the client or integration submitting the SMS request negotiates TLS 1.3 or later with the Bird API. Changing the message content does not resolve this rejection. If you cannot verify the connection, or it already uses TLS 1.3 or later, contact support with the request ID.
Related
- E12xxx — SMS sending & delivery: every code in this range
- Errors: the full wire contract, status mapping, and error catalog
- Error handling: branching on
typeandcode, validation details, andvendor_code
Related resources
Continue with the documentation, guides and examples for this topic.