The variation family you are trying to create for the parent SKU [SKU] contains inconsistent information for the attribute [ATTRIBUTE]. [ATTRIBUTE] must be the same for all members of the family. Your products were listed successfully but the variation relationship was not created. Please ensure all products in a variation family have the same value for [ATTRIBUTE].
This error occurs when you are updating a variation family that has an inconsistent value for an attribute that must be the same across all children.
To resolve this error, do the following: