Recommendations rarely fail loudly. They just sit there, get scrolled past, and take up space. These are the most common reasons.
- Showing out-of-stock products.
- Recommending items already in the cart.
- Too many products in one block.
- The same product in several blocks.
- Offers that ignore the price of the main product.
- A heading that says nothing, like “Products”.
- No way to see what is working.
Fix the easy ones first
Filter out of stock items and cart items, cut each block to four products, and give every block a heading that tells the shopper why it is there.


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