In the end, I found a workaround when the technical account is not automatically created on the first request. Go to Admin ConsoleGo to the author instance of the desired environment (dev,stage, prod)Go to AEM-Administrators-<ID>Got to API Credentials tabCreate new API credentialsEmail from service ...

hi @Vijayalakshmi_S, Yes, the  service credentials are the ones from the instance I'm trying to access. I have 3  environments and none of the three seem to create the user. For the second check, that is my problem. The user is not being created when executing the first request. 

Hello all, I'm following the tutorial of Service Credentials | Adobe Experience Manager and everything is going well except the  part where it's supposed to create a technical account in my aem in the cloud. So instead of giving a 200 and 403 for the other requests its giving me a 401 for everything...