Screen enhancement in PO

Question

Hi all,
I got a requirement to add a button on the standard screen in the service line part in ME21N, ME22N.
Is it feasible to do so by modifying user exit?
I just can't find the user exit to use and wonder if it is feasible...
Please advise.
Thanks so much.

Answer 1

Hi
I have not tried that.
I don't think think this Enhancement can handle buttons functionality. <u>You should also try for BADI using SE18 Transaction. I will update you in my next reply.</u>
<b><u>I hope you must have read the documenattion of this Enhancement - MM06E005</u></b>
With the enhancement  MM06E005 ,  you can                                           
     o   Maintain/supply your own customer fields in the headers and items of
         all purchasing documents except purchase requisitions                                                                               
o   Update your own customer-specific tables                                                                               
You cannot:                                                                               
o   Change standard fields                                                                               
o   Change data that depends on the document header in the items                                                                               
o   Change data that depends on an item in the document header                                                                               
INCLUDES                                                                               
You incorporate your customer fields for the document header in the     
     INCLUDE CI_EKKODB (in table EKKO).                                                                               
You incorporate your customer fields for the document item in the       
     INCLUDE CI_EKPODB (in table EKPO).                                                                               
Dynpro areas                                                                               
If you use the enhancement, you must create and generate the following  
     dynpros (even if the dynpros are not going to be used):                                                                               
o   SAPLXM06    0101    Subscreen header purchase order                                                                               
o   SAPLXM06    0201    Subscreen header outline agreement                                                                               
o   SAPLXM06    0301    Subscreen header RFQ                                                                               
o   SAPLXM06    0111    Subscreen item purchase order                                                                               
o   SAPLXM06    0211    Subscreen item outline agreement                                                                               
o   SAPLXM06    0311    Subscreen item RFQ                                                                               
You must identify all dynpros as subscreens. It is not necessary that   
     they contain fields, but it is essential that they exist in order that  
     no program abend occurs.                                                                               
Function exits                                                                               
The dynpros are linked to the standard program via function modules.    
     There are function modules that provide your subscreen with data        
     (export) and function modules that fetch data from your subscreens      
     (import).                                                                               
o   Header screens:                                                                               
-   EXIT_SAPMM06E_006   Export data to customer subscreen for header
             (PBO)                                                                               
-   EXIT_SAPMM06E_007   Export data to customer subscreen for header
             (PAI)                                                                               
-   EXIT_SAPMM06E_008   Import data from customer subscreen for     
             header                                                                               
o   Item screens:                                                                               
-   EXIT_SAPMM06E_016   Export data to customer subscreen for item  
             (PBO)                                                                               
-   EXIT_SAPMM06E_017   Export data to customer subscreen for item  
             (PAI)                                                                               
-   EXIT_SAPMM06E_018   Import data from customer subscreen for item                                                                               
You can set or supply your own data fields in the PBO function modules.                                                                               
You receive the current (possibly changed viz a viz the PBO call) data  
     of the standard program in the PAI function module.                                                                               
You can return your fields to the standard program in the import        
     function modules.                                                                               
There is also sufficient data available to supply the customer fields   
     from the material master record, info record, reference documents, RFQs,
     contracts, or vendor master record. This is sufficient to fill customer 
     fields in normal dialog transactions.                                                                               
The same function modules are also invoked when purchase orders are     
     created via function modules (function group EINC) (recognizable by the 
     import parameter I_NO_SCREEN, which is then set to 'X').                                                                               
If you wish to update your own tables, you can invoke function module   
     EXIT_SAPMM06E_013. This is invoked directly prior to "commit work" with 
     all available data. You can carry out further checks prior to saving via
     the function module EXIT_SAPMM06E_012. This is processed in the case of 
     the functions "Check document" and "Save".                                                                               
If you wish to read your own tables as well, you should use function    
     module EXIT_SAPMM06E_014. This is invoked when the purchasing document  
     is read from the database.                                                                               
To re-initialize your own data, it is essential that you also use       
     function module EXIT_SAPMM06E_009. This function module is always       
     invoked when the next purchasing document is processed (when POs are    
     created via function module).                                                                               
In the header modules, you obtain the SAP transaction category via the  
     parameter I_TRTYP:                                                                               
o   A   Display                                                                               
o   V   Change                                                                               
o   H   Create                                                                               
You obtain the relevant transaction/event from the SAP transaction table
     (e.g. quotation, scheduling agreement delivery schedule) via the        
     parameter I_VORGA. The possible values are not stored as fixed domain   
     values.                                                                               
In the item modules, you obtain the activity category via the parameter 
     I_AKTYP:                                                                               
o   A   Display                                                                               
o   V   Change                                                                               
o   H   Create                                                         
Hope this will help.
Please reward suitable points, incase it suits your requirements.
Regards
- Atul