Whatsapp Bad request - please check your parameters Parameter format does not match format in the created template

Hello, I’m new to n8n.

Describe the problem/error/question

I have a problem with n8n.cloud, in an integration with Whatsapp.
I want to send a template.
The template is approved by Meta.
The credentials are correct in n8n.
Some parameters are being brought, such as the sender.
The template has a parameter.
And I believe I’m informing it in the integration.
But the error below always occurs.

Best regards,
Marcelo

Error message

Bad request - please check your parameters
Parameter format does not match format in the created template.

My workflow

Share the output returned by the last node

Information on my n8n setup

  • n8n version: 1.56.2
  • Database (default: SQLite):
  • n8n EXECUTIONS_PROCESS setting (default: own, main):
  • Running n8n via (Docker, npm, n8n cloud, desktop app): cloud
  • Operating system: Windows 11