When Riva Cloud or Riva On-Premise syncs Salesforce, the following error may appear in the sync logs:
[Contact] Poll Error - INVALID_TYPE: sObject type 'EntitySubscription' is not supported.
Riva is configured to sync contacts, but in Salesforce, Chatter has not been enabled.
In Salesforce, enable Chatter.
Article ID: 1561
Last updated: 23 Mar, 2017
Also listed in
Riva On-Premise - CRM Sync -> Manage Riva On-Premise (Admin Guides) -> CRM Systems -> Salesforce -> Errors & Troubleshooting