An elaborate explanation you can read here:
This feature is valuable for sellers who are shipping out orders in waves. For example there are companies that are sending out a group of orders in the morning , the afternoon and in the evening.
Let’s have an example and process some orders.
1) Let’s say company X is sending out first wave of orders at 9 am. So they will create one pickwave with all the orders came in till 9am . They will process all the orders assigned as one single order and then despatch them
2) After all the orders have been processed, in the afternoon, the second pickwave can be created with the new orders coming in after 9am. Continuing the operations just like with the first pickwave you can despatch the orders with ease.
The advantages of this feature is that you can select a batch of orders to be processed as one and also the fact that you can assign a pickwave to a specific packer if you have a separate warehouse.
On the pickwave page you can see the following details:
the Pickwave number, which consist of the day when it was created and the number of pickwave groups created , then we have the number of orders included in the pickwave followed by the number of items, be aware that the number of orders and items don’t necessarily need to be the same, as one order can have multiple items. A Daily counter will assign a number to each order added to this pickwave so when printing labels and invoices you will be able to match them, and the last is the description, here by default will add the information on when the pickwave was created , but if you double click on it you can edit it by adding more text or assign it to an employee to pack these orders.