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- From the Navigation panel click Inventory then click on Products.
- Search for the product required
- Click on the General tab from the product then click on Associated Products
- Click on New
Product Association box will appear
Expand title Show me 
- Select the associated product that your require
- Then select the Association type examples of usage:
- Add Free Product- If you buy a notepad you will get a pen for free
- Add Paid Product- When you purchase an item a related item is asked to be purchased. E.g: you buy a bbq set a gas cylinder will be added to purchase
- Cross Sell- A chair is being purchased there is a cushion that comes with it if customer wants to purchase
- Related-
- Replace-
- Up-Sell-