spaces

for some of the fields in output table i need to send spaces instead of values.

for eg:

now i am sending values can any one please suggest how to send spaces istead of values for the following output table

MOVE: GT_AFRU-AUFNR TO GT_OUTPUT-AUFNR,

GT_AFRU-ERNAM TO GT_OUTPUT-ERNAM,

GT_AFRU-ERSDA TO GT_OUTPUT-ERSDA,

GT_AFRU-ERZET TO GT_OUTPUT-ERZET,

please its urgent.