Invoice Office is also providing a picklist feature. To use this feature Go to Reports > Picklist
The wave picklist shows the aggregated quantity of each product from multiple packing notes. Wave picking, also known as cluster picking, is one of several order picking systems used in warehouses to improve efficiency. It involves releasing specific orders to the floor for fulfillment, based on a common factor such as shipping date, items, warehouse zone, etc
Picklist shows each product from all the packing notes with all information like delivery date, customer name, document date, etc it also shows the quantity to be delivered for each product. By using the input box in each row, you can manage the already-picked products. In the overview of the wave picklist, the done column will be updated automatically.