This rule ensures that there has been no receipt activity for a purchase order after the purge parameter date. Any activity after the purge parameter date may indicate activity on related transaction in the PO transaction chain (for example, an update to a related receipt transaction). POs that have been in a static state up to the purge parameter date can be archived or purged. POs with activity after the purge parameter date will be picked up in subsequent archive or purge cycles when the activity date is within the purge parameter date.