How to identify unused measures

Hey,
1st of all unused measures don't affect the perormance of your report. 
It's still a good practice to remove them just to not have "garbage" in your items when you look for something.

There are some tools that can do that, here is a refernce to them:
https://www.pbiusergroup.com/communities/community-home/digestviewer/viewthread?MessageKey=57307f15-e905-4c46-aaad-d888e1164179&CommunityKey=b35c8468-2fd8-4e1a-8429-322c39fe7110&tab=digestviewer#bmee629d90-5fa4-4328-9465-c24d5ce64cec

Hi， ouafaa 

Currently, it is difficult to identify unused tables or fields in pbix files.

But you can get the corresponding list of measures in DAX Studio for retrieval.

Best Regards,
Community Support Team _ Eason