syntax error for reference table/field

Hi all,

I am getting syntax error for the 'z' table Z3AFKO1 for the field VFMNG( it is a Quantity field) and having reference field VFMNG in the table AFKO.

The error is

'Z3AFKO1-VFMNG (combination reference table/field

AFKO-VFMNG does not exist').

can anyone tell me what is the solution for this?

thanks

-Rakesh