How do I resolve “We were unable to attach this to the ticket correctly…” error when attaching a file?

Problem

Given a user is an analyst in Tikit and has the Tikit Teams app installed.
When the analyst attempts to add a file attachment to a ticket.
Then the following error is displayed:

“We were unable to attach this to the ticket correctly. Please make sure you’ve added Tikit to a Team and set the triage channel correctly.”

Solution

Run through the following checklist to make sure Teams and Tikit are configured for attachments:

1. In Microsoft Teams, make sure you’ve added Tikit to a Team. Check out How to add Tikit to a Team.
   
2. In Tikit Bot Configuration settings, set the triage channel to a Standard channel in that Team.  Check out How to set the triage channel.
   
3. In Tikit Security settings, make sure that the Team has been added to the Analysts app role in Tikit. Check out How to assign users and groups to application roles.