Hi all,

I am trying to add a new employee to the shared calendar on outlook.com when I add the user and give her co-owner I get the email no problems then as soon as I click the accept link or copy and paste the link doesn't matter how many different variations I choose it doesn't work.

I get the error:

Sorry this invitation isn't valid any more. The sender may have taken away your permission, or you may have already declined this invitation....

Why when this should be a two min job has it taken over an hour of messing around, I shouldn't have to waste my time posting to groups for something this simple.