E12008 — SMSTemplateVariableUnexpected
parameters contains a variable the template does not define.
- HTTP status: 422
- Type: validation_error
- Name: SMSTemplateVariableUnexpected
What to do
parameters includes a variable this template does not define. Fetch the template to see the variable keys it accepts, then drop the extra ones from parameters and resend.
Operations that resolve this:
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