The purpose of the releaseExistingTransformationConnection method is to check in the application so that it can be used through the entry servlet or by other Integration Object chains. The caller should invoke the releaseExistingTransformationConnection after all Integration Objects in the Integration Object chain have been run. The releaseExistingTransformationConnection call should be used to make the transformation connection available again even if an Integration Object encounters an error while running. This call signifies that the Integration Object chain no longer needs access to the transformation connection.