SAP NEWS-753-DYNPROS

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Dynpros in ABAP Release 7.53
ITOC

ABAP_MODIFICATION_NN Reference Value for Conversion Routines

An optional input parameter with the predefined name REFVAL can be created for the function modules for conversion routines. When a dynpro field of the type CURR or QUAN is converted, this parameter is given the value of a an associated reference field of the type CUKY or UNIT automatically If WRITE USING EDIT MASK is used, the input parameter REFVAL is not filled.