One or both of these errors can be seen in the Riva Cloud or Riva On-Premise logs when polling for changes in specific modules during synchronization.
Error occurred in PollChanges for module - Task: [MissingRequiredField] Required field LastModified was missing
[Opportunity] Error - [Unknown] Error occurred in PollChanges
Some required fields are missing in the affected modules. Often, it is the Last Modified Date field. For example, the first sample error reports that a Last Modified Date could not be found for a task.
Update the module with the missing Last Modified date by following these steps:
Article ID: 1937
Last updated: 18 Jun, 2019
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Riva On-Premise - CRM Sync -> Manage Riva On-Premise (Admin Guides) -> CRM Systems -> Sugar -> Errors & Troubleshooting