RefApp - RR - Validations - Reference item id is empty. This could be due to invalid item mappings or it is empty i.e EAN, UPC, etc.

{ "@context": "http://schema.org", "@type": "Thing", "subjectOf": { "@type": "ItemList", "itemListElement": [ ] } }

{ "@context": "http://schema.org", "@type": "BreadcrumbList", "itemListElement": [ { "@type":"ListItem", "position": 1, "item": { "@id": "/", "name": "Inicio" } } , { "@type":"ListItem", "position": 2, "item": { "@id": "https://www.lorealparis.com.co/cabello", "name": "Productos Para Cuidado del Cabello" } } , { "@type":"ListItem", "position": 3, "item": { "@id": "https://www.lorealparis.com.co/cabello/tinte", "name": "Tinturas De Cabello" } } , { "@type":"ListItem", "position": 4, "item": { "@id": "https://www.lorealparis.com.co/tinte/imedia-excellence", "name": "Excellence" } } , { "@type":"ListItem", "position": 5, "item": { "@id": "https://www.lorealparis.com.co/tinte/imedia-excellence/creme", "name": "Excellence Crème" } } , { "@type":"ListItem", "position": 6, "item": { "@id": "https://www.lorealparis.com.co/imedia-excellence/creme/name", "name": "Castano-Cenizo-4-1-Excellence-Creme" } } ] }