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In Microsoft Dynamics 365 Business Central, registering a warehouse pick and posting a warehouse shipment are two separate steps that affect your data differently. When you register a pick, Business Central creates warehouse entries only. It does not create item ledger entries and does not change your inventory level.
The pick is only a movement between bin codes. It creates a negative warehouse entry on the source bin and a positive entry on the shipment bin. Your actual stock stays the same.
The inventory is reduced when you post the warehouse shipment. Posting the shipment creates both warehouse entries and item ledger entries, takes the items out of inventory, and ships them to the customer.
How registering a pick works in Business Central
When a warehouse employee has finished the pick and entered the quantity to handle on all the picking lines, the pick is ready to be registered using the Register function.
Registering the pick creates warehouse entries, but no item ledger entries. The warehouse entries are created on the bin codes for the take and the place. In a typical scenario where you pick three pieces, you get a negative warehouse entry of three pieces on the first bin code and three pieces on the shipment bin code.
Because this is only a movement between bins, registering the pick does not do anything to your inventory or your stock. The quantity on hand is unchanged.
How posting the warehouse shipment affects inventory
The actual inventory handling happens afterwards, from the warehouse shipment. The pick is made from a warehouse shipment, and once the pick is performed, you post the warehouse shipment.
Posting the shipment creates the item ledger entries that take the items out of your inventory. It also creates warehouse entries that move the item from the shipping bin, in this example place bin number 90, and ship it to the customer.
So posting the warehouse shipment creates both warehouse entries and item ledger entries, while the pick only creates a movement.
Q&A
Does registering a warehouse pick change inventory in Business Central?
No. Registering a pick creates warehouse entries only. It does not create item ledger entries and does not change your inventory or stock. It is only a movement between bin codes.
When are item ledger entries created in the warehouse shipment process?
Item ledger entries are created when you post the warehouse shipment. This step takes the items out of inventory and ships them to the customer.
What entries does registering a pick create?
It creates a negative warehouse entry on the source bin and a corresponding entry on the shipment bin. For example, picking three pieces creates a negative entry of three pieces on the first bin and three pieces on the shipment bin.
What is the difference between registering a pick and posting a shipment?
Registering a pick only moves items between bins and creates warehouse entries. Posting the warehouse shipment creates both warehouse entries and item ledger entries, and it reduces your actual inventory.