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Schedule Line BOM Explosion for Subcontracting Materials

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Hello Experts,

I am new to SAP PP/MM side.

We had an issue in our client server.

Material A is a header Part for which a Subcontracting Schedule Agreement was created and Material B is the component part with Backflush 1 in Material master.

Schedule lines were generated after MRP run.

MRP Run was done for Header Part with the

1 3 1 2 2.

However, the components were exploded only for the Schedule Lines which were fixed and for the other lines BOM was not present.

However if the same MRP run was done with 1 3 1 3 2, BOM explosion happens for all the Schedule Lines.

Post above maintenance, we removed all the Schedule Lines from ME38, and re-ran MRP with 1 3 1 2 2 parameters and then this worked and BOM explosion was done for all lines.

Why does this happen when Planning mode is used as 2 and lines get fixed?

Also after removing schedule lines this worked as expected.

Appreciate any kind of help and expertise in this domain.


Product and Topic Expert
Product and Topic Expert
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