Hi ,

I have a user with  Exchange-Lync integration not working.

Lync is onprem and Exchange  is  O365. User said that the issue started after his mailbox was migrated to O365

The EWS url is not populated for the user.

Issue follows the user when logged on from my computer

UPN,SMTP andSIP address is same

The Proxyaddress field is populated with the correct sip address

To be sure , we have deleted the mailbox and created  a new one also lync account has been recreated.

I found  one issue, when logging in from OWA, we are getting the following message

It looks like a user is used with more than one account

Could this be related to the issue , with two accounts with same email address, creating a conflict