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upadte UPN in Bulk in AD

need to bulk update users upn in ad . I tried using the admodify utility that is now archieved but cant get it to work . does anyone know of a utility or tool that would be able to do this
3 Solutions
Kevin StanushApplication DeveloperCommented:
You can use Hyena to do this a variety of ways.  The easiest method, assuming you have a simple structured way to identify exactly what you want to set the UPN to, would be to use the Active Editor, which has a search and replace feature.  Or, you can import from an external file using either the Active Editor's import feature, or using the Active Task feature.  These methods require you to have something to match against between AD and your file, but the search/replace function or setting the UPN to something based on existing fields, ie First_Name + Last_Name @somedomain.com is easily done in Hyena.
use "bulk ad users" from wisesoft and "csv update" feature of that tool allows you to bulk modify UPN for accounts

Tool is freeware and works great

Else you can do saved query in AD for all user accounts, select all accounts, go to properties and update UPN on account page, it will update for all users
Shaun VermaakTechnical Specialist/DeveloperCommented:
You can just use this PowerShell script to copy the mail attribute to the UPN attribute
gd6627Author Commented:
Thank you all so much for your help
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