An error message using DESCRIBE FIELD

DESCRIBE FIELD MAKT-MATNR LENGTH MNR_LNG .
that line off code gives me an error message:
In Unicode, DESCRIBE LENGTH can only be used with the IN BYTE MODE or IN CHARACTER MODE addition.
can anyone else provide me an explanation and solution..thanks

Hello,
You want to have the length of the field MAKT-MATNR. Then you can use the function STRLEN.
DATA:
MNR_LNG TYPE I.
MNR_LNG = STRLEN(MAKT-MATNR).
Else as suggested you have to use the addition IN CHARACTER MODE with DESCRIBE FIELD.
Depends on your requirement.
Hope this helps !!
BR,
Suhas

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