ION Connect restrictions

Follow these restrictions:

• Only one custom namespace is allowed for every customer. Several custom schemas can be used for different replacement elements for different UserArea elements.

• Each custom schema can only have one top-level element declaration which is a replacement element. That element can be a complex element, but there must not be any includes, or imports, in the custom schema.

• Only one custom schema can be used for every UserArea element. One custom schema can be used by several UserArea elements.

ION Registry metadata provides information about all custom elements for every noun for a customer. Mapper provides built-in functionality to read this metadata from the ION Registry, or from a copy thereof.