Before you start:
You must already completed the following tasks:
You can change the type of an element in your message model to another existing type, or you can create a new simple type or a new complex type.
To change the type of an element to an existing type:
The change to the element type is reflected throughout where the element occurs.
The task above explains how to switch to an existing type. If you want to create a new simple type or a new complex type, select (New Simple Type Restriction), (New Simple Type List), (New Simple Type Union), or (New Complex Type) in the Type list (see step 6 above). For information on how to create a new simple type or a new complex type see Adding a simple type to an element or Adding a complex type to an element.