What do the settings for 'Workflow' mean?
What's the issue you're facing?
I am looking at the Supplier Onboarding settings and I would like to understand what the settings for Workflow allow me to configure.
Solution

The workflow settings within the Supplier Onboarding allow you to set an overall workflow option for your expired documents and approval processes.
Allow Simplified Expired Document Process
This setting is set to true, document questions can be amended so that only a single user is required for their re-approval post-expiry.
Only Admins to override workflow
When this option is turned on, then normal users will not be able to make a final decision to approve/decline participants unless all other steps (ie. questionnaires and approvals have been completed. Users with the SIM Event Configuration permission will still be able to override the workflow).
When approving a supplier, how would you like to categorise them
When categorising a supplier you have the following options:
Groups
Custom Fields
Groups & Custom Fields
Do not categorise