Name of the property for use as input in the corresponding propertyName field in the addProducts request. See the corresponding propertyMetadata container with the same propertyName for property details.
See the Field Index to learn which calls use propertyName.
Name-value pairs that provide additional descriptive details about the property when needed. This information is not used for adding a product to an eBay catalog, but can provide clarification about an individual property. For example, tag information could indicate that a specific property constitutes a unique product identifier.