The Rear Carrier Essential won't fit on my Urban Arrow Anniversary.

Because of the Supernova rear light on the Urban Arrow Anniversary model, the Essential rear carrier will not fit immediately. To make the rear carrier compatible, a special part is required under the following article number. You can ask your dealer to order this part and install the Essential rear carrier on your Anniversary. You need to order this special part together with the carrier to make it fit. The article number is: UA02-0136.