Will auto approval or reject rules apply at line level or at requisition level

Summary:

We have scenarios where we want the requisition to be auto rejected based on the destination type being Inventory. Wanted to know if auto approval or reject rules apply at line level or at requisition level

That is , what if there are multiple lines one with Inventory destination and other with expense destination. Will the requisition be auto rejected even if one line has inventory destination ? Please let us know.

if not, how to achieve the functionality that irrespective of the number of lines, even if one line has Inventory destination type, the requisition will have to be auto rejected?