Your post-checkout product recommendations block will not start popping up for your customers to see before you specify what products need to be recommended in it.
Product recommendations for post-checkout upsells rely on the functionality of the add-on Related Products. For example, if you have products A and B, and you want Product B to be shown in the post-checkout product recommendations block after someone buys Product A, you need to specify Product B as related to Product A. This way, when the block is displayed after your customer completes checkout for Product A, it will provide a recommendation for Product B automatically.
To specify a product as related to another product, follow the steps below:
1. In your store's back end, open the details of the product buying which you want to trigger your store's post-checkout upsell behavior (Product A). Switch to the Related Products tab of the product details.
2. In the Related Products section, click Add related products.
A list of products for selection will be displayed.
3. From the list, select the product that you want to be shown in the post-checkout product recommendations block when someone buys Product A. This is going to be your related product for Product A. (In terms of our example, this is going to be your Product B). If you want more than one product recommendation, select more than one product. All the selected products will be marked as related to Product A. On the screenshot further below you will see just that: two products selected to be added as related.
4. After selecting the products you require, click Add products to save your selection.
Note that if you want the relationship between Product A and its related products to work in both directions, you will need to enable the option Make bidirectional relations before saving:
This way you will not have to go through all the above steps again to specify that Product A is related to Product B.
Once you click Add products, X-Cart will save the selected products as related to the product from which you have started. You will be able to view them as a list at any time via the Related Products section of the product details.
Note that the Related Products section provides you with all the necessary controls to manage the related products. For example, every related product on the list has a Trash button that enables you to delete the product relationship so the product will no longer be shown in the post-checkout product recommendations block. There are also some "four-headed arrow" controls that enable you to rearrange the products on the list to specify the priority in which they need to appear in the post-checkout product recommendations block. And, of course, there is the Add related products button allowing you to add more related products.