Sales order for Office 365 license provisioning fails with the following error message:
Service Creation Failed: Parallels Operations Automation error #error_code #0, extype_id #1, module_id #Common, Internal error: APSC: Unauthorized..
Office 365 Endpoint BackNet IP is not added in Public API allowed networks and API connections are set to be accepted only from the allowed IP list.
Add Office 365 Endpoint BackNet IP in Allowed networks:
Provider CP > System > Settings > Integration > Public API > Allowed Networks