The default purchase document types in Erply are as follows:
Purchase Order - Order to Supplier.
Purchase Invoice - The goods arrive at the warehouse on the basis of the purchase invoice.
Purchase Return - if the goods need to be returned to the supplier
By default account don’t have separate document for Purchase Waybill and Purchase Invoice-Waybill. Be sure to check out our article covering Purchase Waybill and Purchase Invoice-Waybill to learn more about them and see how to enable them!
Document types after enabling separate document types:
Purchase Order - Still works the same way, order to the supplier.
Purchase Waybill - You take the stock in from the supplier, but they haven’t sent the Invoice yet. Purchase Invoice - The products have already come to your warehouse with Purchase Waybill and now the supplier is sending an Invoice for those products that arrived.
Purchase Invoice-Waybill - Works as Purchase Invoice worked before, so the stock arrives at your warehouse with the invoice.
Purchase Return - if the goods need to be returned to the supplier