Exclude from mapping
Performing a mapping manually or with the Smart Matching on, can overload some elements in the target. Overload means an element in the target document has more than one mapping. Sometimes, this can be intentional. For example you can use a function to concatenate two or more elements from a source document into a target element.
In other circumstances this can be unintentional. For example, if Smart Matching is set with a low minimum probability, and a source document contained many instances of a particular named element. Smart Matching can suggest multiple possible matches from the source for a single element in the target document. If the document structures are similar, identify the incorrect connection and delete it from the mapping. If the documents have different structures it can be unsure which is the correct mapping to make. You can exclude a mapping from being part of the resultant XSLT without removing it from the graphical mapping model. You can test the XSLT by excluding the overloading elements in turn to ensure the correct one is used in the final document mapping.