o365 exchange problem objectid

Hi ChristopheGF,

the possible reasons why you might be seeing the objectID instead of the name of the collaborator could be:

• The collaborator's account may not have been synced with the O365 Exchange directory.
• The collaborator's account may not have the appropriate permissions to be added as a delegate.
• There may be a problem with the O365 Exchange server.

Here are some things you can try to troubleshoot the problem:

1. Verify that the collaborator's account has been synced with the O365 Exchange directory. You can do this by checking for the collaborator's account in the Exchange admin center.
2. Verify that the collaborator's account has the appropriate permissions to be added as a delegate. You can do this by checking the collaborator's permissions in the Exchange admin center.
3. Try restarting the O365 Exchange server.
4. Try adding the collaborator as a delegate using a different device or browser.

you can also, in the meantime, work around the problem by adding the collaborator's objectID as the delegate instead of their name. To do this, follow these steps:

1. Open the Exchange admin center.
2. Navigate to Mailboxes.
3. Select the mailbox for the room.
4. Click Edit.
5. Under Delegates, click Add.
6. In the Add delegates dialog box, enter the collaborator's objectID in the Name field.
7. Click Add.
8. Click Save.

Once you have added the collaborator as a delegate, they should be able to send and receive emails on behalf of the room.