Step-by-Step Process in Odoo 18

 Scenario

• You sold a product with a 2-year warranty.
• The customer returns it because it's faulty.
• You can’t re-sell it.
• You may or may not give a replacement product.

 1. Locate the Original Delivery Order

Go to:

Inventory → Operations → Delivery Orders

• Search for the delivery related to the customer’s sale.
• Open it and click Return (top left).
• Select the faulty product and quantity.
• Confirm the return.

 This brings the product back into stock temporarily.

 2. Scrap the Product (Since It’s Not Resellable)

After the return is processed:

• Open the return receipt (incoming transfer created by the return).
• Click Scrap.
• Set:
  • Product
  • Quantity
  • Source Location: e.g., WH/Stock
  • Scrap Location: WH/Scrap (default)
• Confirm

 This removes the item from usable stock and marks it as unusable.

 3. (Optional) Create a Replacement Delivery

If you're replacing the product under warranty:

Option A – Manual Delivery

• Create a new delivery order for the customer (zero cost).
• Move a new product from stock to customer.
• Add a reference like: "Warranty Replacement for SOXXXX".

Option B – Sales Order at Zero Cost

• Create a new Sales Order with:
  • Product
  • Quantity = 1
  • Price = 0.00
• Confirm and deliver the order.

 This gives you full traceability via Sales → Delivery.

 4. (Optional) Track Warranty Replacements

If you want to track warranty actions:

• Add a custom tag or custom field like:
  • Warranty Return → Yes/No
  • Warranty Expiry Date
• Use Odoo Studio to add this field to:
  • Products
  • Sales Orders
  • Stock Moves
• Later, you can filter or report on warranty activity.

 5. Prevent Resale of Faulty Products

• Anything that goes to WH/Scrap is automatically excluded from availability.
• You can also create a specific location like WH/Warranty_Returns for items under testing or inspection.

 Summary Workflow

 Tip: Automate Warranty Period Tracking (Advanced)

• Add a computed field for warranty expiration:
  warranty_expiry_date = sale_date + 2 years
• Use scheduled actions or automated rules to flag expired items.