Sope of planning /qouta Arrangement

Question

Hi PP expert.
i want to under stand scope of planning. there are two finish material type,one MTO and another is MTS.and have 4 production plant.
now for the MTS  i want run one  MRP  for 4 plant. can i do from Scope of planning or Quota Arrangement.
kindly  Guide  me step be step of both scope of planning and quota Arrangement.what is difference in both.and which process  is easy. and how i will send Demand managment to all  4 plant for MRP run.in both case.
Now for MTO.same there are 4 plant and want run only one MRP.can i do from scope of planning or Quota Arrangement.
kindly guide me for both MTO and MTS.only one MRP run for 4 plant
Regards
Aqueel

Answer 1

Aqueel,
You have asked about many topics.  It is not clear what exact business objective you are trying to accomplish.
Quota arrangements has to do with the determination of  sources of supply.  It is not the same as running MRP in multiple plants.
MRP in ECC normally runs plant-by-plant.  You can create a scope of planning, in which you specify the order of plants that MRP runs against.  In this case, you execute MRP once, and in the background, MRP looks at the list of plants you have created, and then runs against the first plant, the second plant, the third plant, and so on.  During the MRP job with Scope of Planning, the MRP processing programs do not run against multiple plants simultaneously, they complete one plant, and then move onto the next, and so on, until the end of the scope of planning list.  You can configure scope of planning in OM0E.
Now you ask about two types of planning methods for materials, one is MTO and one is MTS.  I guess you want to run MRP for the MTS only, against the 4 plants.  You could define the MTS materials as MPS relevant, (change MRP type to M*) and then run an MPS job instead of an MRP job.  In this case, MPS (MD40 et al), which is very similar to MRP, runs only against the MPS parts.  If this workaround is not satisfactory, then you can use the standard MRP selection userexit (M61X0001) to define a specific suite of parts to run MRP against (such as "all MTS parts").  If you combine either of these solutions (MPS or userexit) with scope of planning, you can then run only the MTS parts against the 4 plants in your scope of planning, all in one job.  You didn't speak of when/how you want to run the MTO parts, but you could do the same thing for these parts as well.
If, however, you wish to run both MTS and MTO parts in a single MRP run, against 4 plants, then just use scope of planning.
Demand management is not directly related to MRP.  You can create Planned independent requirements for any combination of parts that you desire.  These requirements, once activated, will cause MRP to run net requirements calculations, and produce procurement proposals (PurchReqs or PlndOrds or PurchScheds).
Rgds,
DB49