Checks for well-formed XML, required elements and attributes per feed schema. Missing or duplicate tags cause the feed to be rejected by the shopping engine.

Detects products priced at $0 or negative values. Common when ERP export bugs occur or when a discount exceeds the original price. Shopping engines disqualify such products immediately.

Finds products sharing the same id or ITEM_ID. Duplicates created by export bugs cause shopping engines to display the wrong price or product variant.

Checks for empty required fields — product title, URL, image, price, availability. Each shopping engine has its own requirements; an empty field means the item is dropped.

Alerts when the number of items drops significantly compared to the previous run. If your feed returns 50 products instead of 5,000, an export failure has likely occurred.

Checks HTTP availability of the feed URL, Content-Type headers and generation time. An unavailable or too slow feed will be dropped by the shopping engine entirely.