The readCSPAccounts.py script fails with the error:
"code": 500, "message": "Value cannot be null.\r\nParameter name: source",
and error in the
ERROR aps_endpoint: Office365AppController.GetImportDataForCustomers finished by exception System.ArgumentNullException: Value cannot be null. Parameter name: source
Script readCSPAccounts.py has been taken from previous Office365 package version, i.e. from 16.8.5 while current installed version is 16.8.6.
Obtain the script from the correct Office 365 package version.