What are the components of the Inventory Add-on?

The following are the components of the Inventory Add-on:

• Inventory Stock update
• Stock Reversal

Inventory Stock update
Every time you receive an order from a vendor or deliver a product to the customer, the Qty in the stock field of the respective product gets updated. Workflows in the Receive Notes and Delivery Notes modules are enabled to update stock.
So, when the Receive Note status = Received and Delivery Note status = Delivered, the product stock automatically gets updated.
Note:

• Inventory workflows can update stock when a purchase order is fully received, a sales order is fully shipped, or every time stock is delivered or received.
• If you enable the receipt note workflow, the purchase order workflow to update the stock is disabled automatically, and vice-versa.
• If you enable the delivery note workflow, the invoice workflow to update the stock is disabled automatically, and vice-versa.
• For existing users - Receipt Note and Delivery Note workflows are disabled by default, with Purchase Order and Invoice workflows enabled.

Stock Reversal
When you reopen a closed Receipt Note or Delivery Note, the status changes to Open, and the stock is reversed, i.e., the stock is decremented in Receipt Note and incremented in Delivery Note.