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HOWTO change the Materials Type of a material master

Willem Hoek on Jan 11, 2013

EDIT on 2022-08-18: Initial post was done in 2013 based on SAP ECC 5.0. Looking at S4/HANA 2021 in 2022 – the functionality is very much still the same! The screens look a bit more modern but that is about it. I decided to leave the ECC 5.0 screens in this post so that you can see how little did it changed.

In some cases it is possible to change the Material Type of a Material Master.

Prerequisites:

• Configuration of both material types must be similar (see transaction OMS2 - Material Type configuration)
• There should be no open PO’s against this material
• There should be no valuated stock against this material
• There should be no open line items against vendors for this material (see transaction FBL1N - Vendor Line Item display)

Material Type can be changed using transaction MMAM
Menu: Logistics > Material Management > Material Master > Material > Change Material Type (tcode MMAM)

• Type in material master number
• Indicate new Material Type
• Execute

A message will indicate if it was successfull or not. And if not why. For example here it failed due to valuated stock and open purchase orders that exists.

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