F150 Dunning creation without increase Dunning level for document Type

Question

Hellò everybody,
I have this request , How I can  do a dunning Letter  and for a specific Document type  , must have always a Dunnng level 1 . I mean do not increase the Dunning Level every time.
For istance :
Every week we make one dunning run. This run has to include all open invoices from ordinary deliveries (dunning level 1 to 3) and also  the open invoices for a specific Document type  (dunning level 1).   This Specific doc.type have not dunning level 2 or 3 .
I have check on BTE and I have update  00001051 DUNNING: Read additional fields for MHND (BSID)  with this Abap code :
IF I_BSID-BUKRS = 'KC01'.
        IF I_BSID-BLART = 'B2'.
      IF C_MHND-MAHNS IS NOT INITIAL.
        C_MHND-MAHNN = C_MHND-MAHNS.
      ENDIF.
    ENDIF.
  ENDIF.
ENDFUNCTION.
But nothing happen ...
Who can help to me ?
Thanks in advance for everythings.
Anna Rosa

Answer 1

Hi Vassy , thanks for your prompt answer ,  I explain better with example :
first time  Dunning  :  Customer AABB
Invoice 1  100   lev 1    Special Invoice
Invoice 2  200   lev 1
Invoice 3 300    lev 1
The Customer do not pay nothing
Second Time Dunning Customer AABB
Invoice 1  100   lev 1    Special Invoice
Invoice 2  200   lev 2
Invoice 3 300    lev 2
Thirt time Dunning Customer AABB
Invoice 1  100   lev 1    Special Invoice
Invoice 2  200   lev 3
Invoice 3 300    lev 3
I mean in the same Dunning letter for invoice 2 and 3 the level Dunning increase(as usual)  for Special Invoice number 1 the Dunning Level   still remain 1.
I know that I can change Manually on open Item the Dunning level but I looking for if it's possible to this automatically.
Thanks a lot.
Cheers.
Anna Rosa