Merge pull request MicrosoftDocs#5589 from tomkau/patch-6

Updated guidance on batch size/count and supported policies

Author: kenwith

teams/teams-ps/teams/New-CsBatchPolicyAssignmentOperation.md

@@ -27,10 +27,10 @@ When a policy is assigned to a batch of users, the assignments are performed as
 
 Users can be specified by their object ID (guid) or by their UPN/SIP/email ([email protected]).
 
-A batch may contain up to 20,000 users. If you submit a batch that includes duplicate users, the duplicates will be removed from the batch before processing and status will only be provided for the unique users remaining in the batch.
+A batch may contain up to 5,000 users. If a batch includes duplicate users, the duplicates will be removed from the batch before processing and status will only be provided for the unique users remaining in the batch. For best results, do not submit more than a few batches at a time.  Allow batches to complete processing before submitting more batches.
 
 Batch policy assignment is currently limited to the following policy types:
-CallingLineIdentity, OnlineVoiceRoutingPolicy, TeamsAppSetupPolicy, TeamsAppPermissionPolicy, TeamsCallingPolicy, TeamsCallParkPolicy, TeamsChannelsPolicy, TeamsEducationAssignmentsAppPolicy, TeamsEmergencyCallingPolicy, TeamsMeetingBroadcastPolicy, TeamsEmergencyCallRoutingPolicy, TeamsMeetingPolicy, TeamsMessagingPolicy, TeamsUpdateManagementPolicy, TeamsUpgradePolicy,  TeamsVerticalPackagePolicy, TeamsVideoInteropServicePolicy, TenantDialPlan
+CallingLineIdentity, ExternalAccessPolicy, OnlineVoiceRoutingPolicy, TeamsAppSetupPolicy, TeamsAppPermissionPolicy, TeamsCallingPolicy, TeamsCallParkPolicy, TeamsChannelsPolicy, TeamsEducationAssignmentsAppPolicy, TeamsEmergencyCallingPolicy, TeamsMeetingBroadcastPolicy, TeamsEmergencyCallRoutingPolicy, TeamsMeetingPolicy, TeamsMessagingPolicy, TeamsUpdateManagementPolicy, TeamsUpgradePolicy,  TeamsVerticalPackagePolicy, TeamsVideoInteropServicePolicy, TenantDialPlan
 
 ## EXAMPLES