1. Log in to the customer's panel.
2. Go to the Mailing tab in the menu on the left, click Templates and Add Template.
3. Create a message template, not forgetting the most important – the recommendation frame.
4. Open the Email Settings section. In the Logic field choose Selected products, in the Json Data Logic field enter the ID of the selected products. They should already be visible in the frame preview.
To find out how to check the ID of the selected products, go to How to check the product ID in the product catalogue.
Remember that the products you choose must be available – otherwise the frame in which they are to be shown will not be displayed at all!