Troubleshooting: Permissions error rights added but may not yet have applied will wait 15 minutes and try again

When the Exchange Migrator runs it checks to see if the Admin account specified has access to the mailbox it is operating against.  If it does not, it assigns itself permission and then waits 15 minutes for the permissions to take effect.  To prevent this delay you must grant your admin account full access to your Office 365 mailboxes before running the Migrator. To do that you must first connect to the remote PowerShell in Office 365.

How to connect to Office 365 remote PowerShell

After you are connected, run the following command to give your admin account full access to all mailboxes:

Get-Mailbox -resultsize unlimited| Add-mailboxpermission -user -AccessRights FullAccess -Automapping $false

Or run this command to give the account access to a single mailbox:

Add-mailboxpermission –identity -user -AccessRights FullAccess -Automapping $false

To later remove the permissions, run the following command:

Get-Mailbox -resultsize unlimited| Remove-mailboxpermission -user -AccessRights FullAccess


Updated: April 16, 2016

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