Sellsy lets you create products association, an important feature for the ecommerce website module.
The idea is to offer you the possibility to recommend complementary products when selling.
Example: if you sell cameras, you probably want to highlight the accessories (protective covers, tripod, batteries...).
To link products together, go to the product record, then click on the tab called Related products.
You can now add the products you want to link:
You can add as many products as you need to.