Thursday 17 November 2016

The UMMailboxPolicy policy assigned to the mailbox in the source forest couldn‎'t be mapped to the policy in the target forest

I have hybrid environment with Exchange server 2013 and office 365. i was trying to migrate a mailbox from on premises to office 365. but was getting the following error and migration was failing.
the reason was that the user was enabled for UM and a UM policy was applying on it, which was not exist in office 365. so as a work around i just went to exchange control panel, search this user mailbox and disable the Unified Messaging in Phone and Voice Features, in mailbox feature of this user.
then tried to migrate again and was able to migrate this time.
Unified Messaging: Disabled

Error: MigrationPermanentException: Mailbox ‎'username@domain.com‎‎' in the source forest is currently enabled for Unified Messaging but it can‎'t be enabled for Unified Messaging in the target forest for the following reason: The UMMailboxPolicy policy assigned to the mailbox in the source forest couldn‎'t be mapped to the policy in the target forest. Wasn‎'t able to find a UMMailboxPolicy policy using ‎'‎(SourceForestPolicyNames Equal Dial_Plan Default Policy)‎‎' as a filter in target forest. Please fix the problem or disable the mailbox for Unified Messaging before you try the operation again. --> Mailbox ‎'username@domain.com‎' in the source forest is currently enabled for Unified Messaging but it can‎'t be enabled for Unified Messaging in the target forest for the following reason: The UMMailboxPolicy policy assigned to the mailbox in the source forest couldn‎'t be mapped to the policy in the target forest. Wasn‎'t able to find a UMMailboxPolicy policy using ‎'‎(SourceForestPolicyNames Equal Dial_Plan Default Policy)‎‎' as a filter in target forest. Please fix the problem or disable the mailbox for Unified Messaging before you try the operation again. --> The UMMailboxPolicy policy assigned to the mailbox in the source forest couldn‎'t be mapped to the policy in the target forest. Wasn‎'t able to find a UMMailboxPolicy policy using ‎'‎(SourceForestPolicyNames Equal Dial_Plan Default Policy)‎‎' as a filter in target forest.
Report:
user@domain.com Download the report for this user

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