Hi @Cloud_Geek_82 ,
Welcome to the Microsoft Q&A platform!
Based on your description, you've taken some important steps by assigning yourself the Discovery Management role and granting Mailbox Import Export permissions. However, there are a few other things you might want to check:
- Sometimes it can take up to an hour for permissions to propagate. If you've just made these changes, try waiting a while and checking again.
- Make sure your account has been correctly added to the Discovery Management role group. You can verify this by navigating to Roles > Admin Roles in the Exchange Admin Center (EAC) and checking the members of the Discovery Management role group.
- Double-check that Mailbox Import Export permissions have indeed been added to the Discovery Management role group. You can do this by opening the Discovery Management role group and verifying the assigned permissions.
- Make sure you've selected the correct mailbox and navigated to the correct section in the EAC. Go to Recipients > Mailboxes, select the mailbox, and then look at Other > Recover Deleted Items.
If you've confirmed all of these steps and the feature is still greyed out, it may help to sign out and back in or try accessing the EAC from a different browser or in incognito mode to rule out any caching issues.
Please feel free to contact me for any updates. And if this helps, don't forget to mark it as an answer.
Best,
Jake Zhang