Is anyone experience with Matrix imports, i’m getting a uniqueness error message but the external id and the name of the item has been updated, i’m trying to recreate items from inventory matrix to lot inventory matrix but retain the name. so i changed the name of the old items and to Item Name-Old and the new item will have the original name or even tried adding -New but we still get the uniqueness error. any ideas? it’s time sensitive on our end.

Are you setting ExternalID as that would need to be unique as well as the parent and child matrix items would need to have unique naming.