We recently upgraded to CRM 2015 from 2011 and we have about 3 users receiving the same exact error when they open up Outlook.
We can install and configure the CRM plugin for Outlook with no issues, however upon start up they receive an error saying "An error occurred promoting this item to Microsoft Dynamics CRM". We click "Ok" although the same error pops up another 4 or 5 times. After continuing to click "Ok" the errors stop appearing and don't come back unless Outlook is restarted.
We've looked up the error and found that multiple people are having similar issues although every fix suggested has not worked. Has anyone run into the same issue and found a fix?