Hope to get the solution of this issue (https://github.com/veda-consulting/uk.co.vedaconsulting.outlookapi/issues/65)
The problem: In CiviCRM 5.12.0, I use OutlookForCiviCRM plugin and the civicrm extension to synchronize contacts and groups between outlook and Civi. However, I get the the following warning message :
I have checked the Sync to outlook box in the group settings and groups contain members.
How can I correct this? Any guidance that you can provide is deeply appreciated