Free goods - Exclusive - Quantity of free goods

Question

I want to give free goods by the condition record I have made at the tcode VBN1. Free godds will be given by the exclusive technique. The material code of the main material with active prcing is 100005 and the material that I will give as free good is 700001. For every 4 pieces of 100005 I will give 1 piece of 700001. I have entered 100005 at the "Material" column, 4 at the "Min. qty" column, 4 at the "For" column st at the "Unit" column, 1 at the "add. FG" column, ST at the "AddQTYUnit" column, 1 at the "Calc.Rule" column, 2 at the "FreeGoods" column, 700001 at the AddMatFrGd" column. The system gives 2 free goods (700001) for 6 priced material (100005) or 4 pieces of 700001 for 14 pieces of 100005. On the other hand I want the system to give free goods for the exactly enough piece of price material. I mean: 2 pieces of 700001 for 8 or 9 or 10 or 11 pieces of 100005; not 2 pieces of 700001 for 6 or 7 pieces of 100005 but the system behaves this way. can anybody help me abput this subject?
Thanks in advance for the answers....

Answer 1

Hi Yasar,
You need to create a new routine for calculate type.
Do as below:
1. Go to VOFM>Formulas>calc.rule Rebate InKd to create a new routine for calculate type.  for example 601.
2. add the following code in this routine 601 and then save.
  USING L_FRM STRUCTURE KONDN_FRM.
DATA: VORKOMMA  LIKE KONDN-KNRMM,
       NACHKOMMA LIKE KONDN-KNRMM.
  L_FRM-NRMENGE = 0.
  L_FRM-NRRUND  = 0.
  L_FRM-NRMENGE = ( L_FRM-MGLME / L_FRM-KNRNM * L_FRM-KNRZM ).
business rounding
    VORKOMMA = FLOOR( L_FRM-NRMENGE ).
  L_FRM-NRRUND  = L_FRM-NRMENGE - VORKOMMA.
  L_FRM-NRMENGE = VORKOMMA.
3. Select routine 601 in field "Calc.Rule" when you create free goods condition record.
Hope it helps.