Data extensions

You can create a data extension (or entity type extension) using the model editor.

After creating the data extension, the additional associated code is generated.

You can define the attributes of an entity extension in the same way that you define attributes for an entity. There are a number of considerations when you are planning and working with data extensions. For more information on creating extensions, see Extension and addition development planning.

The out-of-the-box entities reside in one of the five default domains. For example, the Person, Address, and PartyChargeCard entities (amongst others) all reside within the Party domain. All extensions of entities from a given domain must reside in the same development project and cannot be split between multiple separate projects. For example, Person and Address can both be extended in projectA, but it is not possible to extend Person in ProjectA and Address in ProjectB.