Error:
- ErrorCode:21916582
ShortMessage:Duplicate VariationSpecifics trait value.
LongMessage:Duplicate VariationSpecifics trait value in the VariationSpecificsSet container.
Resolution:
Typically, this error would be triggered when particular values of the multi-variation options in the Item Specific fields for the variation items are saved with a different capitalization or when two variation items contain the exact same value in a variation field. They can be easily identified when the variation items are exported, so they can be updated and saved in the same format after that either through the user interface or via bulk and please see the example screenshots below: