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Change Material Number Length

Former Member
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Hi Gurus,

Is it possible to change the current length of a material number?

At the moment the length of material number is 8 character, can I make it 9 for instance.

Is it safety to do this?


Accepted Solutions (0)

Answers (4)

Answers (4)

Active Contributor
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Hello Atanaska,

The Material number field is assigned the domain MATNR which is of length 18 , if you need to create and saving materials greater than length of 18 then this would require the domain to be

changed but this would be a BIG modification . Any program or screen where the field RMMG1-MATNR is used would also need to be checked and changed as it result in dumps in your System, it is NOT reccomand at all to do this.

Thanx & Regards


Former Member
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Thanks Guys for the replay,

but we are going to have go-live aftre 1 month and the request are not released yet to the Productiv System.

In this case is it possible to make a change in length of material number? Is it possible to have post immplemention problems of that?


Edited by: Atanaska Ashmionova on Mar 30, 2009 2:25 PM

Former Member
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You can change it through T-Code OMSL.


Active Contributor
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try code OMSl here change the Material No. Length to 18



Former Member
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No. It is not possible.

There is big work around. But I am not suggesting to go for that:

You can create new materials with same material type extended to same plants, st. locations, sales org, ware house , etc. Covert material to material by MB1B ( mvt 309).

You have to delete all transaction data (sales order, purchase order, etc & create new one.)