cannot set Out of Office within 365 portal

[Pete Gibson]

Hi There,

   I am trying to set an Out of Office for one of our users, but I get this error message:

"the operation couldn't be performed because UserName matches multiple entries"

the user is unique in the organisation. how do I trace for multiple entries?

best regards

Pete

[#2]

How are you trying to set the OOF?

It's possible that there are multiple recipients in the organization with the same alias.

[#3]

I ended up opening the users mailbox from within the admin console and applying the OOO there. that worked fine.