PO Change Order Auto Approval for Amount Decreased

Summary:

Hi,

We wanted to frame a rule that triggers approval only if the amount changed in PO is greater than the existing amount. For the rest change order should have auto approval.

For example :

→ If the Purchase Order amount is 6500 then if a Change Order is raised to change the amount as 6000 it should approve automatically.

→ If the Purchase Order amount is 6500 then if a Change Order is raised to change the amount as 7000 it should go for approval as pert he hierarchy.

I frame a rule with attributes like Is change in document ordered amount less than document ordered amount then Automatic - Approve.