What transactions affect my inventory levels?
Introduction
Only two transactions affect inventory levels: receipts and shipments. If you'd like to alter your inventory manually you can also create a manual adjustment.
Shipments
When you complete a shipment, the units on the shipment will be deducted from inventory.
You can see the inventory deduction in the history tab of the item that was shipped in the inventory module.

Receipts
When you complete a receipt, the units on the receipt will be added to inventory.
You can see this inventory increase in the history tab of the item that was received in the inventory module.
What's next?
Here are some other articles related to inventory movements that you might find helpful:
Inventory movements in Paragon