Hi Mugsman3,
Do you mean after running the PowerShell command to prevent one user from changing the photo, he/she can’t log on to IM in OWA (Outlook Web App http://mail.office365.com/)
If so, according to my test, logging to IM in OWA won’t be affected by the limitation of changing the photo for one user.
Please note that I have run the PowerShell command for this user.
In addition, we’d appreciate it if you can post this new issue in our forum as a new thread with more detailed information such as whether there is an error message, if other users have the same issue. Our engineers will focus on it and provide the support in a timelier manner.
Thanks for your cooperation.
Regards,
David Zhang