Making an UDF appear on Marketing Documents

Dear experts,

I have created a UDF on table OITW and I would like to make this field appear in Marketing Documents line.

Currently, when I create a field in PLD and select this table as the source, the final result is many, many lines appearing in the print, even if I have only line in the Marketing Documet.

Can someone help with this please?

Please advise ASAP.

Kind Regards,

Victor Cau