The full sync process can be stopped manually by deleting synchronization requests in FSM Admin module:
The following steps must be performed after manual stop of full sync:
Stop Message Broker
Stop the full sync in FSM by deleting synchronization requests in FSM Admin module (mark and delete objects)
in SMQ1, mark all queues with queue name /PACG/ECM_FULLSYNC and delete them
Execute the setup program (/PACG/ECM_SETUP - FSM Connector's Setup)
Restart Message Broker
Run Full sync