Assign the output variable to an operand

Hello,

In my variant program, i need to export an integer variable(holds months) to an output operand which of INTEGER type. This Output operand should update the Installation facts history.

I tried writing using macro’s :    mac_output_ioper x_op-o1,

                                                  MAC_FACTS_WRITE X_OP-O1-OPERAND X_OP-O1-OPTYP

but they are NOT working.

Also tried updating izone strcuture but in vain.

I have XY_OBJ & SY_SOBJ as changing parameters. Do i need to update in one of them?

Can anyone suggest me how do I do that?

Thanks