- Task
- Return the buyer to exactly the position he was looking at. Each size and color has a separate card, so "same product" and "similar product" are different things here: a person needs a 70B, not a 70A.
- Solution
- Store on OpenCart 3 with a remarketing module that gives the product_id separately for Google and Facebook; e-commerce event transmission is enabled in GA4, with GTM and Google Ads running nearby. We took the technical indicators of the site and compared the volume of the catalog using two independent methods.
- Result
- Measure 08/01/2026: 115,456 product items by search and 112,646 unique product addresses in the site map, a discrepancy of 2.4%. The identifier for the two advertising systems is transferred, that is, a match is achievable. The main risk found is for the dynamic channel: in a sample of 150 random product addresses, 50 (33%) return 301, and all 50 lead to a different position — a different size or color. On the scale of the catalog, this is about 37,000 addresses, on which a click from the banner leads to the wrong product.