Submits the changes made to the External Item.
Assembly: Microsoft.BusinessData (in Microsoft.BusinessData.dll)
The External Item has been modified on the external system since it was last read or a suitable update method instance could not be found.
This method should be called to commit the changes made to the External Item. The changes can be made through the following methods: Associate(EntityInstanceCollection, IAssociation), Disassociate(EntityInstanceCollection, IAssociation), FromXml(String), or the indexer methods (Item[String] or Item[IField].