Provision an Instance Without the Correct User Roles Causes Failure

If you attempt to provision Oracle Integration Classic (user-managed) without the required set of user roles, you receive errors. For example, the following error occurred because the user account did not possess the correct role for provisioning an Oracle Database Classic Cloud Service instance.

Mar 7, 2018 7:41:57 PM UTC Service creation request accepted.
Mar 7, 2018 7:41:57 PM UTC Initializing OIC7786QS
Mar 7, 2018 7:42:34 PM UTC Failed to create Compute resources for Database Server...[Compute Error: Unable to authenticate]
Mar 7, 2018 7:42:34 PM UTC Initiating Database Service Termination... 

To successfully provision Oracle Integration Classic, ensure that your user account is assigned the correct roles. See Assign the Correct User Roles to Create an Instance.