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<h2 class="wp-block-heading">Matching Users after migrating to new Active Directory Forest</h2>



<p>Installing ADConnect in a new forest for the same users which have been migrated to a new Active Directory forest</p>
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<p>In order to do so you will have to launch Azure powershell in admin mode and connect to MSOL service as in the following snapshot</p>



<p>$cred = get-credential<br>After connecting then type/copy the following ;<br>Get-MsolUser -ReturnDeletedUsers -All | Out-GridView</p>



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</figure>



<p>Once you type enter a GUI will come up showing you all the deleted users list, you should delete any old non-usable account that has similar attributes to the ones that you&#8217;re about to Sync from the AD to O365. ;</p>



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<p>Once you&#8217;re sure about what do you want to delete you can go ahead with the following Command to delete the users</p>



<p><strong>Note:</strong><br>You must be sure that when you run this command, you will no longer be able to restore any deleted item or object later on.</p>



<p>Get-MsolUser -ReturnDeletedUsers -All | Remove-MsolUser -RemoveFromRecycleBin -Force –Verbose</p>
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<p>Now you should run the following Script on the same open power shell in order to start the copying process. </p>



<p>Import-Module Msonline<br>Import-Module ActiveDirectory<br>$cred = Get-Credential<br>Connect-MsolService -Credential $cred<br>$onlineusers = Get-MsolUser -All<br>$adusers = Get-ADUser -Filter *</p>



<p>Press enter and when you want you get prompted to select an option choose 1 and enter</p>



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<p>Note:If you would like to ;receive ;the powershell script please don&#8217;t hesitate to contact me. ;</p>



<p>After the copy is finished you can match for yourself the list of ImmutableID along with the GUID ;<br>Ldifde -f dump.txt</p>
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<p>Dump.txt</p>



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<p></p>
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