Upvoting this request. Certain teams lack tracking information. To address this, I propose the ability to designate an object's property as optional, contingent on the data source. For example, consider a product object with numerous properties. Ideally, it should be possible to define a property as mandatory for one source while treating it as optional for another.

Yes, please! Our main use case would be adding a name mapping to the properties. It feels strange, that there are different options when you directly add a property to an event vs. to an object.