MPS

[Former Member]

Hi, my understanding is that MRP fulfills all requirements of MPS. Any comments........

[former_member667328 · Accepted solution]

Hi,

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.

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.

I think this may got the answer.

Mohit

[Former Member · Accepted solution]

Hi

Thanks for your response. Its still not clear. Can u pls explain with an example as what and how to do with MPS run before MRP run.

Your comment "MPS operates within only one level of the BOM" is not correct. If u run MD41 it will plan like MD02. Pls suggest

Regds

[dhaval_choksi3 · Accepted solution]

Hi,

As said by other members principally there is no such difference between MRP and MPS.But the way it has to be use that makes the difference.See if you use MRP type PD for both of your inhouse produced and externally procured items.That means when you will get the planning result for all the materials in one shot if you take total mrp run using MD01.Which contains plan orders for Halbs and Ferts and PR for externally procured materials.

Now what happen if you not satisfied with the planning result of MRP.See there are chances where you will get the lot of exception msgs like BOM not explode,scheduling data inconstant etc.And most important thing you might know that in R3 system considers the capacity of resource as infinite that means in most of the cases you have to perform capacity leveling.

So what SAP has recommended use MPS for HALBs and FERTs and MRP for other BOM components.Then first run MPS (MD40) So you will get plan orders for HALBs and FERTs and dependent requirements for lower level components.Then check the result and if required do the correction.And then run MRP which will give you better result.

Regards,

Dhaval

[Former Member · Accepted solution]

Thanks Dhaval for explaining.

[Former Member · Accepted solution]

Hi Guys,

So does that mean MPS is like single item single level planning run (MD03) but for a collection of materials?

[Former Member]

Hi Yadav,

MPS is executed using the same principles as MRP.

In order to be able to work with the MPS component, you require the MRP component (PP-MRP) as well as all further components that are required for MRP.

The system does not plan master schedule items in the normal MRP runs.

MRP is used to carried out using current and future sales figures. The planned and the exact requirements quantities trigger the net requirements calculation.

In MPS, finished products and important assemblies, so-called master schedule items, are planned separately and with extra attention. Only the master schedule items are planned in this planning run. The system creates dependent requirements for the BOM level directly below the planning level. It does not, however, plan levels below this.

Regards

R. Senthil Mareeswaran.

[Former Member]

Hi

Even I also didnot find MPS as helpful. Or what is the scenariso where it can be used effectively is not clear.

How ever its not that it will plan only one level. If you run MD41 it will plan as MRP does.

Any furthur inputs?

Regds