How to decide MRP controllers

Hi,
My client has five plants. Client manufactures 4 different products. Some raw materials are common for few products.
First doubt is I am not able to decide what solution to give on how many MRP controllers should be made?
Next, in material master of Finished, semi and Raw materials what MRP controller to put in all cases as well as in case of one raw material is used in say 3 different products.Ex. products are cycle, rickshaw and bike.Plants are 4 in numbers.
Now in material master if cycle i can put mrp controller as 001.its subassemblies( semi finished) also as 001. Similarly in case of rickshaw as 002 and its subassemblies (semi finished) as 002.Similarly in case of bikes as 003 and its subassemblies (semi finished) as 003.
For finished and semi finished it is ok. But for raw material say one 'bolt', it can be BOM of cycle and rickshaw and bike. So in the material master of 'bolt' , what MRP controller can be given??
Guys please answer.
Regards,
Mohammad Arif.

Hi Arif,
You have to probe / decide ur self How the responisbility or MRP of all materials is divided in ur client's company. How the reports wanted to be generated?
U can ask:
MRP controlling is Product wise or Plant wise?
If product wise and same MRP Controller is for all the 4 plants,u can ask : for all the levels below the main product the same MRP controller look into or different MRP controller?
In ur case, u can go :
For all Finished materials Rickshaw/Cycle/ Bike 1MRP controller or 3 different MRP Controllers.
Again, in all the 4 plants 1 MRP controller for each product can be enough or 4 different MRP controllers in 4 plants for the same product can be assigned.
Like this, in semi finished and Raw materials case also.
The points to be observed here is:
1) MRP view in material master is a Plant specific. So in all the plants for same material u can use same MRP controller or different MRP controller in 4 plants.
2) Whenever u require reports, there will be Plant and MRP controller fields for input.
Kiran.

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