E12019 — SMSAlphaRegistrationRequired
Alphanumeric senders require registration for the destination country. Register a sender for this country before sending.
- HTTP status: 422
- Type: validation_error
- Name: SMSAlphaRegistrationRequired
What to do
Register an alphanumeric sender for the destination country, then send again once it is approved.
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