Erply has three different types of inventory documents that move inventory, below will be a short description of each of them along with links to their specific articles.
Inventory Transfers
These are used to transfer inventory between different locations.
More specific info HERE.
Example: You move 20 notebooks from location A to location B. You create an inventory transfer document, so the inventory quantities in Erply match the ones in real life.
Inventory Registrations
These are used to add inventory to a specific location.
These are also used to create assembly products.
These can be created from a Physical Stocktaking.
More specific info HERE.
Example: You find two boxes of candles in your warehouse that you were unaware of. You create an inventory registration and add them to your Erply stock.
Inventory Write-Offs
These are used to remove inventory from a specific location.
These can be created from a Physical Stocktaking.
More specific info HERE.
Example: A product breaks and you create an inventory write-off to remove it from your stock.