When setting up a procurement policy with category access policy rule defined the users have restricted access to procurement categories as defined on the Purchase requisition. However if the same user tries to change a Procurement category on a PO, the system will allow it. The users are able to select any procurement category regardless of what is defined on the policy.

We are well aware, that the current design of the system is made only for Purchase requisitions, however we believe that without having the same logic applying to the Purchase orders it means that users can bypass that policy later in the ordering process.