E12021 — SMSSenderTypeNotSupported
This sender is not available for the destination country.
- HTTP status: 422
- Type: validation_error
- Name: SMSSenderTypeNotSupported
What to do
Use a different sender for this destination country; this sender is not available there.
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