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making field mara-maktl not mandatory in mm02/mm01

hello sdn people,

hopefully the economy is not in peril where you are...

as my subject line states, i have checked the transactions OMSR / OMS9 and it shows that the field should be display, but it is still required. i would like to turn this off so that this field is not required.

any thoughts? any ideas?

thanks in advance.

Former Member

Hi Erik,

In the Standard System it will not be possible to save the material if the material group is not ready for input or if it has no value (if it is initial).

You must correct your field selection Customizing for the material group (MARA-MATKL) in Customizing Transaction OMSR accordingly, so that you can maintain the material group in the material master.

Basically, If the purchasing view is filled (ie. the material is eligible for purchasing), the material group (MARA-MATKL) become mandatory.

Thus, the customizing has no effect in this case. If you only fill the Basic view and NOT the Purchasing view, the customizing will have thedesired effect in your System.

The reason for this is that the purchasing programs require this field and MUST be filled in the material master (It is 'hardcoded' this way).

The only way to avoid the error would be to do a modification into the source code !!!

Greetings from Italy,


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