Hi,

The ability to open/close a POS session is not granted to normal users by default — it’s tied to Point of Sale managerial rights.

Groups involved in POS

In the Users & Companies → Users → Access Rights tab, the relevant groups are:

    Point of Sale / User → can use the POS, sell, see their own sessions.

    Point of Sale / Administrator → can configure POS, view all sessions, and close sessions.

If you truly need only “close session” rights without all manager permissions, you’d need a custom security group + record rules that allow access to the pos.session model’s close_session action, without the rest of the managerial rights.

Hope it helps