Can we used the ASL for a no item Purchase Order (Supplier and category combination)

Summary: Can we used the ASL for a no item Purchase Order (Supplier and category combination)

I configured an ASL for Supplier and category combination (NO ITEM #).

We want to restrict the PO's to use a different Supplier. That category should be used only one particular supplier.

It working with all the items that contain that category, but is not working for Non Items PO.

I am missing any configuration?

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25c

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