Once you have created your questions and added your products, you have to link question answers to products so products can be recommended (Step 3. Link products). Linking consists of categorizing each product with a corresponding answer.
By default, you will link each answer to products. Check the Linking answers to products article for more information. However, in some cases it’s faster to select all answers that match with products at a glance. Check the Linking products to answers article for more information.
An alternative way to define how products are recommended is by creating a decision tree and assigning products to end nodes (outcomes). Since this method is best for specific use cases, check out the Branching controlled by tree article for more information.