After you have allocated items into picking requests, you can access Left Menu → Fulfillment → Fulfillment Management → Picking to go to the Picking Requests page.
User will be redirected to Picking Request by Order page.
In the page, You can see all picking requests created in the warehouse that need to be picked (in case you have the permission to manage the picking process, else the staff can only see picking requests assigned to them). There will be data for their related Order ID, Batch ID, Age, Pick ID, Purchase Date (of the related order), Picker, Qty (total quantities to pick of all items) and Status of the picking request.
You can learn how to pick for each picking requests here. {How to pick a picking request}
Or in case that you wants to optimize the picking process in your warehouse, please have a look with {How to Batch Picking the picking requests }