new warning

Author: b-ahibbard

articles/azure-netapp-files/cross-region-replication-requirements-considerations.md

@@ -21,6 +21,8 @@ This article describes requirements and considerations about [using the volume c
 * The replication destination volume is read-only until you [fail over to the destination region](cross-region-replication-manage-disaster-recovery.md#fail-over-to-destination-volume) to enable the destination volume for read and write. 
     >[!IMPORTANT]
     >Failover is a manual process. When you need to activate the destination volume (for example, when you want to fail over to the destination region), you need to break replication peering then mount the destination volume. For more information, see [fail over to the destination volume](cross-region-replication-manage-disaster-recovery.md#fail-over-to-destination-volume)
+    >[!IMPORTANT]
+    > A volume with an active backup policy enabled can't be the destination volume in a reverse resync operation. You must suspend the backup policy on the volume prior to starting the reverse resync then resume when the reverse resync completes. 
 * Azure NetApp Files replication doesn't currently support multiple subscriptions; all replications must be performed under a single subscription.
 * See [resource limits](azure-netapp-files-resource-limits.md) for the maximum number of cross-region replication destination volumes. You can open a support ticket to [request a limit increase](azure-netapp-files-resource-limits.md#request-limit-increase) in the default quota of replication destination volumes (per subscription in a region).
 * There can be a delay up to five minutes for the interface to reflect a newly added snapshot on the source volume.