I have made a user as tenant admin and I have added the REST API access to tenant admins group but still I am unable to get the list of tasks from an external system with the user credentials of a user who is in tenant admin group.
Not really sure what went wrong here but its good now. How it worked is as below. Used the POST with an empty body. URL: http://<systemIP>:8080/activiti-app/api/enterprise/tasks/query?tenantId=1 Basic authentication was used.