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

[marceloacastro]

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

[Jon]

Hey @marceloacastro,

Welcome to the community

Looking at that error WhatsApp is telling you that the parameter format doesn’t match what the template is expecting. The issue is likely to be with the data you are sending but your error screenshot doesn’t show that.