Service Pack 11 for BBIS introduced Event Registration Forms. When you setup this part and include the event registration pricing options, you get the following warning: IMPORTANT! A designation has not been configured for this event. Please configure this event designation in CRM. The UK Product Flag does not have the ability to configure designations for an event so you are unable to action this warning.
We’re currently evaluating this issue for a fix in a future patch or service pack. This does not hinder the functionality of the part, it's just a warning.
Steps to Duplicate
Create Event 2.0 Part
On the new modal that shows, tick to include some price options