Different Unique IDs/SKUs but All Same Size

This error occurred because at least two of your variants for one product listing are the same size but have different SKUs/unique IDs.

Troubleshoot this issue: Make sure that each SKU or unique ID represents a different variant of the parent listing. One variant (i.e., one size) for the product should only have one unique ID or SKU.



  • ShirtParent
  • Shirt_large, red, L
  • Shirt_medium, red, M
  • Shirt_small, red, S


  • ShirtParent
  • Shirt_large, red, L
  • Shirt_LG, red, L
  • Shirt_L, red, L
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