E12006 — SMSTemplateLanguageInvalid
The requested template language is not a valid language tag.
- HTTP status: 422
- Type: validation_error
- Name: SMSTemplateLanguageInvalid
What to do
Provide the language as a valid BCP-47 tag (for example 'en' or 'pt-BR'). Fetch the template to see which languages it offers, then 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