I'm trying to import customer records to update their custom item pricing but am getting the csv error response - There is an existing custom price in this currency for this item. Please select a different currency or item.

I have overwrite sublists checked, so I would have thought it would just try to overwrite these values, no? How do I get around this?

Here are my import settings. Also, should this be Update or Add/Update? Currently using just Update since I'm assuming I'm just updating customer records, not adding new lines as it might be…

Here is my mapping