By setting the Invite basis, you will be able to determine when a workflow role is invited to the workflow.
There are three possible settings:
Supplier · By selecting supplier, the workflow role will only be invited if a user who has that workflow role is mapped to the supplier;
Approval workflow role · By selecting approval workflow role, the workflow role will only be invited if a user with that workflow role has been mapped as the line manager of a user who is in the workflow. For example if user A has been mapped as the line manager of user B and user B is invited to the workflow, this will invite user A;
All basis · By selecting all basis the workflow role will always be invited to the workflow.