Field help (ORIEXP) 

This field is to be entered when an expression has to be used to load field Destination. It is possible to enter any accepted expression in an X3 processing: constant, X3-language elements.
..\FCT\SEEWARNINGNo syntax control is carried out upon expression entry. An expression error can thus lead to an error in the compilation of the generated processing or to an error upon execution of the accounting interface processing.