Transferring mappings
Mappings can be transferred between databases without the need to import or export every mapping to Mapping projects first. This type of transfer is done through the import or export option from the Database connectivity wizard.
Transferred mappings, to or from the database, manifests as a Mapping Unit file with the "mpu" extension. An mpu unit is a self-contained mapping, complete with schemas, and stored as one xml file.
Note: This functionality is only available in Advanced mode. Use
this functionality only for transferring mappings between Mapper Databases for earlier
versions of IEC. When using direct communication between the mapper and a Mapper Database,
all mapping functionalities may not be supported.