Meta Whatsapp's CLoud API

Hi there,

I'm trying to send whatsapp messages using Meta's API

I'm able to do it both in Postman and Graph's explorer tool. However In retool I keep getting the below errror:

I saw in this topic that someone had the same issue and fixed it by "headers must not have key and value.

$headers = array( "Authorization: Bearer ACCES_TOKEN", "Content-Type: application/json", );

Is this replicable in Retool?

Hi everyone, I'm at a company using "green API". At the moment messages are being sent stably. And the documentation with methods is clear.
API is integrated with CRM in different languages. Including PHP.