E15003 — WhatsAppTemplateParameterMismatch
The message parameters do not match the parameters the template declares.
- HTTP status: 422
- Type: validation_error
- Name: WhatsAppTemplateParameterMismatch
What to do
The parameters you sent do not match what the template declares. List the template to see the parameters it expects, then send one entry per declared parameter, naming each one when the template declares named parameters.
Related
- E15xxx — WhatsApp 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