Getting invalid api key or secret

I am developing a simple app to create a meeting for an authorized user.
I using OAuth , have create the app and have a valid token

Error
{“code”:200,“message”:“Invalid api key or secret.”}

Hi @hbetancur,

Could you please share if you followed these steps for setting up the token and if you are using Postman to test your request? The process is similar, but you select for OAuth instead of JWT.

Thank you,
Gianni