Error: Duplicate name-value combination in variation specifics

This error means that some of the variations that you are trying to list in a multi-variation listing have exactly the same item specifics options, so eBay couldn't recognize the difference between them.
Check if your variations combinations are unique for your product.

For ex., in #79 and #82 product variations Shoe Size 8 is specified, this causes the 'Duplicate name-value combination in variation specifics' error.

 

eBay Integration