eBay Error 21916720: Cannot list with both product listing details and item compatibilities.

Why this happens

The listing is linked to an eBay catalog product (ePID) and also has a vehicle compatibility list. eBay allows one or the other for the same listing. Why eBay enforces this: An eBay catalog product already includes fitment data. eBay does not allow a second, manual compatibility list next to it, because the two could contradict each other. When it usually happens: It usually appears on auto parts that were matched to an eBay catalog product after a compatibility table was added.

How to fix it

This error in other languages

German: Ein Angebot kann nicht gleichzeitig Produktdetails aus dem Katalog und eine Fahrzeugverwendungsliste enthalten. French: Impossible de mettre en vente avec à la fois les détails produit du catalogue et une liste de compatibilité. Italian: Non è possibile mettere in vendita con i dettagli prodotto del catalogo e la compatibilità veicoli contemporaneamente. Spanish: No se puede publicar con los detalles del producto del catálogo y la compatibilidad de vehículos a la vez.