Possible error codes that can be returned by .
Valid values
Combined listing cannot be child product variants.
A parent product variant cannot contain itself as a component.
A parent product variant must not contain duplicate product variant relationships.
Exceeded the maximum allowable product variant relationships in a parent product variant.
Unable to create parent product variant.
Unable to remove product variant relationships.
Unable to update product variant relationships.
Unable to update parent product variant price.
Product variant relationships must have a quantity greater than 0.
The product variant relationships to remove must be specified if all the parent product variant's components aren't being removed.
Nested parent product variants aren't supported.
Combined listing cannot be parent product variants.
Gift cards cannot be parent product variants.
Parent product variants cannot require a selling plan.
A parent product variant ID or product ID must be provided.
The products for these product variants are already owned by another App.
Some of the provided product variants are not components of the specified parent product variant.
The product variants were not found.
A Core type relationship cannot be added to a composite product variant with SFN type relationships.
Unexpected error.
Multipack bundles are not supported.
A price must be provided for a parent product variant if the price calucation is set to fixed.