Error with Exchange Sync: "[1777076] Cannot determine the value for the property (UID_ADSDomain@EX0DynDL)!" (4270803)

Error with newly created Exchange Synchronisation:

"Errors occured

[2134003] Error executing synchronization.
[1777018] Error executing workflow (Initial Synchronization) of synchronization project (Microsoft Exchange 2010 '[domain]' (recipients from [fqdn])).
[1777124] Error executing projection step (DynamicDistributionGroup) of projection configuration (Initial Synchronization (Initial Synchronization)).
[1777219] Error executing projection step (DynamicDistributionGroup)! [System.AggregateException] One or more errors occurred.
[1777239] The mapping rule (Domain <-> vrtDomainCanonicalName) was unable to execute the projection between system objects ([object]) and ([fqdn]) successfully!
[1777161] Property (vrtDomain@EX0DynDL) could not set the value ([domain]/) from system object ([object])! [1777076] Cannot determine the value for the property (UID_ADSDomain@EX0DynDL)! The value to convert ([domain]/) was not found in property (CanonicalName@ADSDomain)."

Assign a EX0Organisation to a forest in Manager:

Active Directory | Exchange System Administration | [Select Exchange System] | Change Master Data