Creation of BOM with Items whose qty is not fixed derived from a formula.

Question

Bom need to be created for a finished product whose Item quantities are ot fixed. The scenario is explained below.
Raw milk(cow and buffalo) is a Raw Material recd from Vendors in litres.It is converted to
kg as 1L = 1.027Kg.Finished Header material is Toned milk with Fat 3%
and SNF 8.5%.UOM for FG is in Litre only.
Fat and SNF(Protien)% is measured at incoming stage and recorded and Fat
content will vary from 3 to 6.5% and SNF content will vary from 7 to 9%.
Based on the measured Fat and SNF% value the required Fat and SNF% is
calculated for the Finished Header Material.For each measured value
target Fat% and SNF% will vary.
Then again after calculating the requuired Fat and SNF%,If excess Fat
and SNF found in the raw milk they are extracted. If Fat and SNF
contents are less than the target value additional Fat/SNF will be
added.For extraction and addition they follow certain percentage.
Can pls let us know how to create a BOM for such scenario. I am at Customer
place for implementation.I have given the calculation method below.
Formula used:
1)Available (Fat or SNF) % in 1027Kg = Available (Fat or SNF) % per Kg * Input Milk Qty in Kg(1027)
2)Required (Fat or SNF) % in 1027Kg = Target (Fat or SNF) % per Kg * Input Milk Qty in Kg(1027)
3)Excess/Less (Fat or SNF)% in 1027Kg = Available (Fat or SNF)% in 1027 Kg - Req (Fat or SNF) % for 1027Kg
4)Addition Fat to be added or Extracted = Excess or Less Fat % in 1027Kg * 72%
5)Additional SNF to be added or Extracted = Excess or Less SNF% in 1027 * 95%
Note: 1) In The above formula Available Fat% per Kg of Raw milk may vary from 3 to 6.5%
Note: 2) In The above tformula Available SNF% per Kg of Raw milk may vary from 7 to 9%.

Answer 1

Hi
U need to use master recipes for this kind of scenario(PP-PI)
First Create char like SNF , FAT ect what ever u want to use in formulas
Then assign these char to Batch class (023) and assign to your ROH , HALB, FERT in Classification view
Create BOM for u r FERT and later Master recipe
In Master recipe u can use material calculations using in put char values like % FAT ect
Then u r BOM Comp qty will change automatically as per the % FAT in Raw milk
In this way u can map the req in SAP. I hope this info will be useful
Regards
Brahmaji