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Former Member
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Dear Gurus,

can u explain me diff b/n MPS and MRP???

can anybody suggest how to do MRP AND MPS???



Accepted Solutions (1)

Accepted Solutions (1)

Former Member
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The following might help in explaining the difference between MPS and its counter part MRP.

Master Production Schedule (MPS) :

MPS operates within only one level of the BOM, While MRP can be utilized throughout all levels of a materialu2019s BOM. If a MPS is run on a material, the necessary orders are planned at that level. Dependent requirements (if any) are placed on the next BOM level down, and then the process stops.

Main Idea : Master production scheduling (MPS) is a form of MRP that concentrates planning on the parts or products that have the great influence on company profits or which dominate the entire production process by taking critical resources. These items are marked as u2018Au2019 parts (MPS items) and are planned with extra attention. These items are selected for a separate MPS run that takes place before the MRP run. The MPS run is conducted without a BOM explosion so that the MRP controller can ensure that the Master schedule items (MSI) are correctly planned before the detailed MRP run takes place.

You can run the transactions MD40 (MPS Online), MD41 (Single item multilivel MPS)

The master production schedule is a line on the master schedule grid that reflects the anticipated build schedule for those items assigned to the master scheduler. The master scheduler maintains this schedule, and in turn, it becomes a set of planning numbers that drives material requirements planning. It represents what the company plans to produce expressed in specific configurations, quantities, and dates. The master production schedule is not a sales item forecast that represents a statement of demand. The master production schedule must take into account the forecast, the production plan, and other important considerations such as backlog, availability of material, availability of capacity, and management policies and goals. Syn: master schedule.

Material Requirements Planning (MRP) :

A set of techniques that uses bill of material data, inventory data, and the master production schedule to calculate requirements for materials. It makes recommendations to release replenishment orders for material. Further, because it is time-phased, it makes recommendations to reschedule open orders when due dates and need dates are not in phase. Time-phased MRP begins with the items listed on the MPS and determines

(1) the quantity of all components and materials required to fabricate those items and

(2) the date that the components and material are required. Time-phased MRP is accomplished by exploding the bill of material, adjusting for inventory quantities on hand or on order, and offsetting the net requirements by the appropriate lead times.

tcode are used to run MRP.

- MD01 is generally used to run the MRP for all the materials in a plant normally just before go-live.

- MD02 is used to run MRP for materials which have a BOM i.e multi-level.

- MD03 is used to run MRP for materials which do not have a BOM i.e single level.

Answers (4)

Answers (4)

Active Contributor
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Please refer my reply from this thread,


Hope it will help you.



Former Member
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Dear Thimmaiah,

MPS- is mostly used for the products which influence company's profits & which are costly (in most of cases for FG)

MRP-when any material shoratage is there, then system creats a procurment proposal or Plan order when u run MRP

Regarding t-codes, i think u can check in system itself in production

let me know if u want furthur info



Edited by: kumar kumar on May 6, 2009 7:16 AM

Former Member
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You can refer the below link:


You can run the transactions MD01 (Online planning run), MD02 (Single item multilivel MRP) &MDBT (Total planning background)


You can run the transactions MD40 (MPS Online), MD41 (Single item multilivel MPS)



Former Member
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MPS - master production scheduling..

It is the planning of a critical product..Critical in the sense the material may be high valuated..

MRP-- material req planning

It is the planning of any kind of material. The result will be purchase reqns and planned orders..