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Former Member

Cannot edit material group in PO

Hello Experts,

Good day!

I need help on how to edit material group in PO which is grayed-out.

I have checked and there are no subsequent documents. I have also checked the screen layout at document level and the material group field is already optional. With this, I should be able to edit it already, right?

Could you assist me on what else to check to be able to edit the material group in PO item level which is already grayed-out?

Thanks and regards,


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3 Answers

  • Posted on Dec 03, 2012 at 06:42 AM

    Go to OLME Tcode - Purchase Order - Define Screen Layout at Document Level - Select AKTA - click on Basic Data, Item - Make it as Optional/Mandatory as per requirement.

    Do this for AKTE, AKTH, AKTV, ME21 and NBF.

    Check in PO.



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    • Former Member Shivaprasad H J

      Even if you try the above method, it is not going to work, simple thing is Material group is picked from Material master and not possible to change the material group in Purchase order. If GR is not done, then delete the line item and go to MM02, change material group and proceed for PO.



  • Posted on Dec 03, 2012 at 09:51 AM


    Why you want to change material group in purchasing document?

    Are you creating material purchase order or service purchase order!

    When you create any purchasing documents such as PR,RFQ,contract , scheduling agreement and purchase order for for material, then material group should flow from material master and during creation ,you should not allow to change material group for that material master.

    If you are creating service purchase order,then material group/service group flow from setting in t.code:ML91 where it maintaioned in field of Default Material Group at Item Level.

    In future or now, report needed based on material group and if you are able to change material group in purchasing document that will reflect the true statistics of report!


    Biju K

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  • Posted on Jan 03, 2014 at 12:38 PM

    Sorry for my late answer. Mass maintenance of single or multiple purchase orders with transaction MEMASSPO works for me in the most cases. If it doesn't work for you, you'll at least get a reason.

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