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Lexicographic flag setup and material number range change

Hi gurus,

got the following situation:


Tcode MMNR: Number range for material master part number: AAAAAAAAAAAAAAAAAA to ZZZZZZZZZZZZZZZZZZ (lenght 18, external assignment)

Tcode OMSL: Lexicographic flag IS NOT setup

Tcode OMS2: For all material types flag "External no. assignment w/o check" IS SETUP

Basically we can't create numeric only part numbers.

The new requirement is to be able to create numeric part numbers like:




01234 (where the leading zero is a significant character for the part number)

By doing the following changes:

MMNR: change number range 000000000000000000 to ZZZZZZZZZZZZZZZZZZ

OMSL: setup lexicographic AND leading zeros flag

OMS2: clear flag for External no. assignment w/o check

I see I do achieve the result: numeric part numbers can be created, leading zeros are managed in the correct way and all numeric part numbers are LEFT-aligned, so looking to MARA you would see part numbers like this:










I did already tried all the above changes in the quality system, then created a numeric part number and an alfanumeric part number, for both of them did create a PO, Inbound delivery, posted MIGO, created a sales order, outbound delivery, PGIed without any issue, stock was displayed and managed correctly by the system, same for material docs.

We already thought about BW, so in case we do the changes BW would be ok.

Apparently everything is fine so I should go for the production system BUT........ in my mind I'm thinking that OMSL Tcode is usually setup day 1 of an Sap project and then usually you forget it... I have the fear that even if everything looks fine (and Sap allows me to change the customizing), I'm going to muck up the system...

Have you ever had the same to do ? I already saw posts similar to this one but already existing conditions were different so to me this case looks like unique so far..

Any help, suggestion, whatever will be highly appreciated, especially cause I have to take a decision by tomorrow morning

Many thanks in advance !!


Edited by: Matt on Aug 13, 2011 7:39 AM - profanity removed

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