Troubleshooting Tip: 'FSR-Auth-043: Login denied as all concurrent user seats are currently in use'

A 'Named' user has a FortiSOAR seat permanently reserved, i.e., such a user can always log onto FortiSOAR except in case of a license violation. However, a 'Concurrent' user can log in only when there is a concurrent seat available.

The limit of users allowed to be logged in at a time depends on the number of user seats on the license. The allowed users can be found at UI Settings -> License Manager.

When the user faces this error, the administrator can verify the logged-in users from the Settings -> Users; logged-in users are marked green in the extreme right.

SSH to FortiSOAR and command to check logged-in users (Sample output):

# csadm user show-logged-in-users

Users with following usernames are logged in currently
testuser

csadmin

For the FSR-AUTH-043 error, the calculations are simple. The formula is below:
Place reserved for concurrent users = License users - Named users.

Resolution:

If the user seat count is low, then it is a good practice to keep the admin account as a named seat and create concurrent users for others. 

Commonly encountered issue in test instances or basic deployment, FortiSOAR licenses only have 2 users, hence it will be reserved for named users as named users are granted to log in at any given time. If FortiSOAR users wish to use concurrent users.

Related document:

FortiSOAR v7.6.2 Deployment Guide Licensing FortiSOAR