I am running into some problems with users not able to access my servicedesk. I have added them in the following locations:
* JSM > Customers
* JSM > People > Servicedesk Customers
* Administration > Portal Customers
Customers are still getting the following message:

So in order to try and fix it I have added the person in user management but without any roles added. After that this person still can't login and is now seeing the following message:

What am I missing here? I have added many customers in JSM and all of these are able to login and create issues in Servicedesk. Just a few with these problems and I'm not sure how to fix this now.
Anyone who can help me out fixing this?