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MD01 - in what order does the MRP run pick its materials to plan

Former Member
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Hello,

I would like to know how the MRP global run (MD01or inthe background) picks the sequence of its materials?

Is it by order of material number? first number first run? or is there anyother logic?

Thanks for any reply

Aart

Accepted Solutions (1)

Accepted Solutions (1)

Anupam1143
Active Contributor
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HI

The planning is done on the basis of low level code. The low-level code controls the sequence in which the material is planned in an MRP run,First the materials with low-level code 0 are planned, then the materials with low-level code 1, and so on. The lower the low-level code, the higher the number that is assigned to the material.

The level that is set in the material master record represents the level at which the material will be planned. This means that the material will only be planned once all assemblies in which it occurs have been planned and exploded.

The low-level code is set internally in the material master record when the BOM is maintained.

You can find from F1 help also.

Regards

Anupam Sharma

Answers (4)

Answers (4)

former_member184655
Active Contributor
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Dear Aart,

As well said by Dogboy49,the system plans the materials according to the low level code sequence.

Materials may appear in several products and in several production levels of a product. The low-level code represents the

lowest level of usage of a material within all product structures.

It determines the sequence in which the materials are planned. The system plans materials with the low-level code 0 first and

then those with 1 and so on. The lower the low-level code is, the higher the number assigned to the level.

http://help.sap.com/erp2005ehp_05/helpdata/EN/f4/7d276944af11d182b40000e829fbfe/frameset.htm_

Regards

Mangalraj.S

dhaval_choksi3
Active Contributor
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Hi,

System conciders the materials in ascending order of their low level code for mrp run.

Low level code is maintain automaitically by the system which you can find either in md21 or in material master itself, press blue ikon of information on material.

Regards,

Dhaval

sundaresan_velayudam
Active Contributor
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Dear,

During Background job, system will check the planning file entry, system will consider Only those material during MD01 or in Back ground, During MRP run system will explode the BOM of the planning file entry material and run for Semifinished and raw material also.

Check the processing mode in MRP run( NETCH, NETPL...)

If you are using NETCH

check the planning file entry in MD21

enter plant , and tick the Netch( net change in total horizon)

and excute, system will consider this Material only in MD01 and also the BOM of the planning file entry

former_member183783
Contributor
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you can check your planning profile..(OMOD I don't quite remember it..spro >production>MRP-->..planning profile)

As far as I know,when running MRP,it will pick the parts in that file..

check that file ,then you will know it's sequence...

Former Member
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Aart,

Generally, the most important sort is Low Level code. After that, I have never investigated. From a planning perspective, any other sort is irrelevant.

Best Regards,

DB49