I am trying to extend the mass change functionality in tcode FBL3N. I followed the inctructions in the note 324855. It works fine for fields from main screen and additional data screen on FI document line items. Now, I want to include a field from COBL, but I am getting the error: "Field BSEG-ZZFIREF7. does not exist in the screen SAPMF05L 0300". The reason seems to be the fact, that cobl fields (accessed per button More) are on a different screen (9999 in this case).
Does anybody has an experience with extending of mass change with coding block fields?
Thanks in advance.