E12011 — SMSTemplateMediaUnsupported
Templates are text-only; 'media_urls' cannot be combined with 'template'.
- HTTP status: 422
- Type: validation_error
- Name: SMSTemplateMediaUnsupported
What to do
Templates are text-only. Remove 'media_urls' when sending a template and send again.
Related
- E12xxx — SMS sending & delivery: every code in this range
- Errors: the full wire contract, status mapping, and error catalog
- Error handling: branching on type and code, validation details, and vendor_code