Sometimes, an appointment declined by a user in Exchange is not synced properly to the user's calendar in the CRM. The user's status indicates that they have "Not Responded".
The issue occurs in this scenario:
Limitation in Riva's regular poll.
In Riva Sync 2021.3, Declined Appointment Polling has been introduced to address the limitation, but action is required on your part: Enable Declined Appointment Polling.
Article ID: 818
Last updated: 13 Aug, 2021
Also listed in
Riva On-Premise - CRM Sync -> Manage Riva On-Premise (Admin Guides) -> Troubleshooting (Includes Monitoring) -> Resolving Data Sync Issues