The UNITS_VS, REVENUE_VS and COST_VS fields are used to store the totals for the vendor shipments processed for the item (vendor shipments processed using the same warehouse location are included). These fields are maintained in both the Weekly and the Monthly file.
Units_VS: (Units vendor shipped). The number of units invoiced on vendor shipment sales orders during the given period.
Revenue_VS: The sales revenue (price * qty from each invoice line adjusted to house currency) from the vendor shipments for the item.
Cost: The cost of sales (cost * qty from each invoice line) from the vendor shipments for the item.