1. In Shopify Admin Navigate to the Assign Section.
  2. Select “Assign Offer” to access the product page.
  3. Pick the product you wish to assign Frequently Bought Together products.
  4. Select “More Actions” and Click on the upsell cross-sell app.
  5. The form will appear with the main product; click on “Assign product.”
  6. Add two Frequently Bought Together products to the main product, then save your changes.

Offer Display: The Frequently Bought Together offer will now be created and displayed on the product page of your store for customers to see.