Use 'M3 Document. Open' (CRS928) to define M3 standard business documents. A full set of documents is generated by function key F14='Standard'. You can also use the function key F15='Gen all'. This generates document media in (CRS116) and the connection between document media and standard documents in 'M3 Document. Connect Media' (CRS929).
Document variants refer to the variants of document content structures. A dispatch advice document contains a specific content describing delivery. By using another document variant, you can restructure the content with details such as package, item, or order-oriented.