SRC365 / Outlook Add-In: Your request cannot be completed due to permissions | Error 500 The given header was not found

Created by Abderrahim Ibnou el kadi, Modified on Mon, 23 Jun at 9:01 AM by Marc Chouinard


Problem


Users report an error when they try to report a false positive or spam, or they try to block a message using the Outlook Add-In.


Error sample:




Possible error texts:


Your request cannot be completed due to missing permissions. 
Please contact your administrator

or

Error 500 The given header was not found



Legacy Exchange online tokens have already been turned off by Microsoft for most tenants and the PowerShell workaround has also been disabled.



Solution: 


This is done in two steps:


Step #1 - Prepare the tenant to have the proper permissions for the new version of the add-in to function.


Step #2 - Once a sufficient critical mass of customers are ready, Vircom will push out the patch.  However if a client hasn't done Step #1, this will break functioning add-ins (they will get the "missing permissions" error instead of the "Error 500").




Step 1: You need to deploy new permissions using the following link


If you're a direct Vircom client, you just need to do this from your Office365 org admin account.


If you're an MSP with multiple clients/orgs on Office365, you would need to do this once for each one in Office365.   


Simply click on the link below using the Office365 tenant org admin:


https://login.microsoftonline.com/organizations/adminconsent?client_id=acc26595-4acf-46af-a434-52fd6ec2e791&redirect_uri=https://support.vircom.com/a/solutions/articles/48001269366


Once logged in 365 you will get the following, click on Accept



Once completed you will be redirected back this current KB article.



Step 2: Add-in will work again as soon Vircom update the backend server and deploy (automatically) the new SRC version. 


Once updated, this text will be replaced by the release date.