You set up approval routes to specify the persons who are responsible for approving an order. The approval route code needs to be defined in the Branch/Plant Constants set-up.
You should identify the approval route codes that need to be assigned, in the application processing option for each version.
When you activate the approval route, and after assigning an approval route, the system does not process the order until the approver approves the order, the authorized person's user ID should be linked to the employee address book number by using the User Profile Revisions (P0092) application. The approver who is responsible for approving an order may depend upon the department or location, and also based on items that you want to purchase. Multiple approval routes can also be created that contain different groups, different persons, and different levels of approval. It also depends on the cost of the items or services that you want to purchase, and you may need to obtain approval for an order from more than one approver.
You should specify the value of purchase orders that require order approval in the approval route. If the amount exceeds from one approver's limit, then the succeeding approver should approve the order, based on their approval level.