# How to recommend products using the Parent-Child Algorithm ## Why does it happen? When utilizing algorithms to recommend products **based on customer interactions** such as viewing products or adding them to the cart, the recommendations include products **without considering** specific attributes like **size or color** that the customers may have interacted with. This situation can result in an experience that seems generic and potentially frustrating for your customers.

## How to solve it? CDP 365 offers a feature that enables you to provide **product recommendations based on either Parent or Child data**. This feature limits the recommended products to **either parent or child items exclusively**, and it removes any instances of duplicated parent and child products. To differentiate between Parent and Child data, please navigate to the [Parent and Child data ](#parent-and-child-data)section.

### Parent and Child data Within CDP 365, we have labeled the **child products** using the **existing** values of the **Parent Item ID** attribute. If the Parent Item ID attribute has **non-existing values**, then those values correspond to the **parent products**. Therefore, kindly proceed to your **Product** Business Object and access the attribute to view its associated data.

Once you identify whether a product is categorized as a child or parent, you can then **determine which product level** to recommend to your audience. * **Step 1**: Go to the settings of the **Product Business Object**. * **Step 2**: Activate the **Parent-Child relationship** feature, enabling you to recommend products based on different product levels. * **Step 3**: Choose and configure the specific levels that you want to enable in the template settings.

You have the choice of three levels: 1. **Parent** 2. **Child** 3. **Parent and Child** Depending on your selection, the relevant product level will become available for you to choose in the template settings.

### In your template In your template, you can now **opt for the specific product level** to which you want to recommend products. Here's how to do it: * **Step 1**: Access the general **Settings** and proceed to the **Basic** tab. * **Step 2**: Within the **Content Sources** section. * **Step 3**: Choose the **Product source** * **Step 4**: Confirm your selection to complete the process.