Mapping Rules That Are Automatically Deleted

When you open a map, the Mapping Editor automatically deletes mapping rules from the map in two cases:

Case 1: One or both of the XML Schemas that the map refers to have been changed.

Schemas can change due to changes in the connection activities or message definitions they are generated from. Schemas that you add to the project can also be edited directly.

Note: The warning message from the Mapping Editor lists the mapping rules that were deleted. This list might also include rules for property nodes, such as ihmap:exists for the optional property node.

Review the map and recreate or alter mapping rules to handle the schema changes properly.

Case 2: One of the XML Schemas that the map refers to has been deleted from the project.

In this case, the Mapping Editor deletes all mapping rules, and the map cannot be recreated. Close the map and delete it from the project.