Do you know how to resolve the "Couldn't authenticate" problem on ZendeskAPI?

I'm trying to connect my zendeskAPI to create a ticket with a python application but I surely missed something because I just got the "Couldn't authenticate you" error, I've created and activate the api token in Zendesk and I tried in Postman But i came to the same error.

Here its my url and the headers (the variables are correctly connected)

And the token authorization added too

I already saw some topics with the same problem but no solutions worked. Do you have an idea ?

I tried to use Webhooks on Zendesk but the company i work for doesn't have the extension. Is it possible to install it ?

For postman authorization, you need to set the type to Basic Auth rather than API Key. It will encode your username {{mail}}/token and API token for you. You will NOT need to manually add an authorization header and encode the credentials separately.

Also if you are using python, consider using a community developed client that would make your API calls much easier. Zenpy is still maintained.