If the Attribute is **not** required, the Attributes of all Products using those enum keys will also be removed in an [eventually consistent](/general-concepts#eventual-consistency) way. If the Attribute is required, the operation returns an [EnumValueIsUsed](ctp:api:type:EnumValueIsUsedError) error.
Removes enum values from an AttributeDefinition of AttributeEnumType, AttributeLocalizedEnumType, AttributeSetType of AttributeEnumType, or AttributeSetType of AttributeLocalizedEnumType.