Product Warranty Enabling Warranty: To enable warranty in products go to Settings -> Business Settings -> Products -> Enable Warranty Using Warranty Adding Warranty:  Add warranty types by going to  Products -> Warranty . Assigning warranty for products:  Go to Add/Edit product and select the warranty that is applicable for the product. Sell with warranty:  Any products which has warranty assigned when sold will use the transaction date as start of warranty. You can display warranty in receipts by enabling it from Invoice layout.