Symptoms
Office 365. readCSPAccounts.py script fails:
ProtocolError for localhost:8440/RPC2: 401 Unathorized
Cause
Operations Automation API credential information is not added to the Provider CP > Applications > Office 365 > Instances > [application instance] > Settings application instance properties tab.
Resolution
Add required API access credentials according to the Creating 'Office 365' Application Instance documentation article.