WorkGuru allows you to control your purchasing workflow by setting an approval limit to your users.   The approval limit allows the user to only approve and issue purchase orders up to and including the value set.

Ensure that the users that you want to set the purchase order limit have the Approve Purchase Orders permission set in either the individual or role permissions.

Open the edit page for the user and enter the limit in the Purchase Order Approval Limit field and Save.

Once set, when that user raises a PO, the Save and Approve button will not be present when the value of the PO goes over the approval value.    Note:  This limit also applies to the user approving purchase orders created by other workguru users.