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Changing Material Type

Active Contributor
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There are some materials (~100Nos) which require material type to be changed from Semi-finished to finished.

Some have Production orders & the valuation stock also exists.

I have got information from SAP HELP the prequisites still I have a clarification on Account category reference.

The Account caterogy reference is different for the Old & new material type.

Can it also be changed & what are the pre-cautions be be taken?

Any other views please on changing material type?



Accepted Solutions (1)

Accepted Solutions (1)

Active Contributor
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Keep the material number ranges in mind.

IF you change the material type the material number will stay. So if you have designed seperate number ranges for material types, then you will screw up this design by allowing MMAM.

Answers (3)

Answers (3)

Former Member
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Dear Vengata,

Material Type can be changed subject to following conditions

Old & new type must be assigned to same account category


No open PO , Stocks ,reservation etc.

I hope this will clarify your doubt.

If useful please reward points,

Vivek Maitra

Former Member
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Material type can be changed with some preconditions.

- There should not be any stock for the material

- There should not be any open item for the material

- Both the material types should have the same set of Qty and value updates which is generaly ticked in OMS2.

-some info records available

If you try to change the material type the system will give you the details of why it cannot be changed.

Please try <b>MMAM</b> and look at the error log it will give you.

Try to remove these errors so that u can successfully change material type


Former Member
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Through MMAM try to change

in follwing cases u can not change mat. type

1 Stock exists

2.Purchasing doc exists.

3Purchasing info records exists