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Cost center to be blocked for posting for particular cost center in ME21N

Jan 02 at 04:28 AM


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Hi Experts,

Requirement: To block the PO creation for the cost center (KOSTL) = '19001' and Acc. Assignment Category(KNTTP) = 'K' for the tcodes ME51N, ME52N, ME54N ,ME21N, ME22N ME29N.,


For this i used BADI -ME_PROCESS_REQ_CUST , but i m unable to get both kostl value and knttp value in any of the methods .so i tried using BADI -ME_REQ_POSTED and its working fine for other tcodes but it is not triggering for ME21N,

Pl help to block the cost center for me21n tcode .

Pl find the attached program.

Thanks in Advance,



me21n.png (28.9 kB)
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1 Answer

Best Answer
Raymond Giuseppi
Jan 02 at 06:40 AM

For ME2*N, use BAdI ME_PROCESS_PO_CUST, for ME5*N use BAdI ME_PROCESS_REQ_CUST. In both case use method PROCESS_ACCOUNT and macros from mm_messages_mac.

Navigate from both method parameters to find available methods to read required information.(Look for get_data and get_exkn)

NB: You could also consider a CO validation (tr. OKC7) to get similar result.

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Hi Mr.Raymond,

Thank you for the reply,

I used the BADI ME_PROCESS_PO_CUST to block the cost center in ME21N but i can able to save the document ,

Is it possible to restrict the document from saving when the cost center is blocked.

Thanks in Advance,



me21n-new.png (24.5 kB)

You didn't raise an error with the macros provided and didn't invalidate the item accounting...

* include mm_messages_mac. " Read BAdI documentation!
* mmpur_context mmcnt_context_badi. " set context
*  if not ls_accounting-id is initial. 
*    " remove previous error(s) raised by BAdI on this item
*    mmpur_remove_msg_by_context ls_accounting-id mmcnt_context_badi. 
*  endif.

* Raising error and invalidate item
mmpur_metafield mmmfd_cost_ctr. " field related to error (Look at type-pools MMMFD)
mmpur_message_forced 'E' 'ZMSG' '999' ls_account-kostl ls_item-knttp ' ' ' '. 
im_account->invalidate( ). 

(And don't paste a screen capture of the code but paste 'unformated' part of the code in block created with 'insert code')

NB: Also consider to remove the hard-coded cost centers, ask functionals to (at least) handle some 'set' (GS01) or 'group' (KSH1) of cost centers (and to look at Customizing for any option already allowing this check...)