The following are known limitations for the Conga-Dynamics 365 Connector as of the current release:
After creating a sync group, the user must provide a value for "Last Sync Time" as a one-time only task. "Last Sync Time" is the time when the first data sync operation is run.
The Address field is not supported. Workaround: Copy fields of type Address, convert them into individual fields such as "Street" (Text), Country (picklist), State (picklist), and Zip (numerical, text, or picklist), and then sync.
The Composite field is not supported.
If there is a discrepancy between the source and destination field type, the sync will not be successful.
Dynamics 365 has a limitation where a process cannot be run for more than 2 minutes. When this occurs, the connector will pause the sync and resume at the next scheduled run.