E12002 — SMSUnsupportedFeature
This request contains a field that is reserved for a future release and is not yet supported.
- HTTP status: 422
- Type: validation_error
- Name: SMSUnsupportedFeature
What to do
Remove the reserved field from your request and send again; it is not accepted yet.
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