rma/product_warranty/readme/USAGE.md

To use this module, you need to:

1. Go to Sales > Products > Products (or Product Variants)
2. Create a new product (or product variant) or edit an existing one and set 'Warranty Duration' under 'Sales' tab.
3. If 'Purchase' module is installed, got to Sales > Products > Products (or Product Variants), go to 'Purchase' tab, edit supplier information lines an set the warranty information for each one.