How to define the action to auto reject a Purchase Requisition in BPM

Summary:

What is the correct notation in BPM to auto-reject a purchase requisition if the conditions are met

Content (please ensure you mask any confidential information):

When certain information is not provided, we want to auto-reject a requisition. How do I create the action to auto reject for this rule in BPM?

Version (include the version you are using, if applicable):

Oracle Fusion