Enhancing a standard screen

hi all,
I have a requirement where i have to add a field on screen of a standard transaction with effect on other fields.
Ex : In T-code ME21N, if i want to put a check box and if the check box is checked then an action should take place in runtime.
Or a field where document no can be inputed.
And there also a requirement where if the 'item category' or the column 'I' is filled as D,then it should give a pop-up.
which badi should i use for this case.
regards,
Johnson

Hi,
Here is the procedure to implement screen exit.
Screen exits add fields to screens in R/3 applications. SAP creates screen exits by placing special subscreen areas on a standard R/3 screen and calling a customer subscreen from the standard screens flow logic.
the tcode is cmod...
1.From the main screen of the Project management transaction, proceed as follows:
Select Enhancement components and choose Change.
2.Choose Edit component.
3.Choose the screen exit and double click on it
4.Create your subscreen using the Screen Painter.
5.Design your screen to be added to the standard screen and activate the particular screen and return back to the flow logic .
6.Choose the PAI and PBO to write down the logic.
7.Generate your screen and choose Back (the green arrow) to return to the Project management transaction.
8.Go to the transaction ME22 to view the customer defined screen exit.
9.Enter the purchase order number and press Enter.
10.Go to the menu header --> Details.
11.Purchase number is visible on the standard screen
Please check if the thread given below would be of any help.
http://sap.ittoolbox.com/groups/technical-functional/sap-r3-dev/menu-exits-72696#
http://wiki.ittoolbox.com/index.php/HOWTO:Implement_a_screen_exit_to_a_standard_SAP_transaction
https://forums.sdn.sap.com/click.jspa?searchID=10843961&messageID=4640690
Regards
Kiran Sure

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Message was edited by:
Ian Stubbings
Message was edited by:
Ian Stubbings

A repair has to be made and then the system is able to regerate the screen 3000.
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Ofcouse Nishanth, u need to code in PBO and PAI event.
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Need some help in creating Search Help for standard screen/field

I need some help in adding a search-help to a standard screen-field.
Transaction Code - PP01,
Plan Version - Current Plan (PLVAR = '01'),
Object Type - Position ( OTYPE = 'S'),
Click on Infotype Name - Object ( Infotype 1000) and Create.
I need to add search help to fields Object Abbr (P1000-SHORT) / Object Name (P1000-STEXT).
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I specify again, I have to add a new search help to standard screen/field and not to enhance it.
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Hi Pradeep,
Please have a look into the below site which might be useful
Enhancing a Standard Search Help
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/daeda0d7-0701-0010-8caa-
edc983384237
http://help.sap.com/saphelp_nw04/helpdata/en/cf/21ee93446011d189700000e8322d00/frameset.htm
A search help exit is a function module for making the input help process described by the search help more flexible than possible with the standard version.
This function module must have the same interface as function module F4IF_SHLP_EXIT_EXAMPLE. The search help exit may also have further optional parameters (in particular any EXPORTING parameters).
A search help exit is called at certain timepoints in the input help process.
Note: The source text and long documentation of the above-specified function module (including the long documentation about the parameters) contain information about using search help exits.
Function modules are provided in the function library for operations that are frequently executed in search help exits. The names of these function modules begin with the prefix F4UT_. These function modules can either be used directly as search help exits or used within other search help exits. You can find precise instructions for use in the long documentation for the corresponding function module.
During the input help process, a number of timepoints are defined that each define the beginning of an important operation of the input help process.
If the input help process is defined with a search help having a search help exit, this search help exit is called at each of these timepoints. If required, the search help exit can also influence the process and even determine that the process should be continued at a different timepoint.
timepoints
The following timepoints are defined:
1. SELONE
Call before selecting an elementary search help. The possible elementary search helps are already in SHLP_TAB. This timepoint can be used in a search help exit of a collective search help to restrict the selection possibilities for the elementary search helps.
Entries that are deleted from SHLP_TAB in this step are not offered in the elementary search help selection. If there is only one entry remaining in SHLP_TAB, the dialog box for selecting elementary search helps is skipped. You may not change the next timepoint.
The timepoint is not accessed again if another elementary search help is to be selected during the dialog.
2. PRESEL1
After selecting an elementary search help. Table INTERFACE has not yet been copied to table SELOPT at this timepoint in the definition of the search help (type SHLP_DESCR_T). This means that you can still influence the attachment of the search help to the screen here. (Table INTERFACE contains the information about how the search help parameters are related to the screen fields).
3. PRESEL
Before sending the dialog box for restricting values. This timepoint is suitable for predefining the value restriction or for completely suppressing or copying the dialog.
4. SELECT
Before selecting the values. If you do not want the default selection, you should copy this timepoint with a search help exit. DISP should be set as the next timepoint.
5. DISP
Before displaying the hit list. This timepoint is suitable for restricting the values to be displayed, e.g. depending on authorizations.
6. RETURN (usually as return value for the next timepoint)
The RETURN timepoint should be returned as the next step if a single hit was selected in a search help exit.
It can make sense to change the F4 flow at this timepoint if control of the process sequence of the Transaction should depend on the selected value (typical example: setting SET/GET parameters). However, you should note that the process will then depend on whether a value was entered manually or with an input help.
7. RETTOP
You only go to this timepoint if the input help is controlled by a collective search help. It directly follows the timepoint RETURN. The search help exit of the collective search help, however, is called at timepoint RETTOP.
8. EXIT (only for return as next timepoint)
The EXIT timepoint should be returned as the next step if the user had the opportunity to terminate the dialog within the search help exit.
9. CREATE
The CREATE timepoint is only accessed if the user selects the function "Create new values". This function is only available if field CUSTTAB of the control string CALLCONTROL was given a value not equal to SPACE earlier on.
The name of the (customizing) table to be maintained is normally entered there. The next step returned after CREATE should be SELECT so that the newly entered value can be selected and then displayed.
10. APP1, APP2, APP3
If further pushbuttons are introduced in the hit list with function module F4UT_LIST_EXIT, these timepoints are introduced. They are accessed when the user presses the corresponding pushbutton.
Note: If the F4 help is controlled by a collective search help, the search help exit of the collective search help is called at timepoints SELONE and RETTOP. (RETTOP only if the user selects a value.) At all other timepoints the search help exit of the selected elementary search help is called.
If the F4 help is controlled by an elementary search help, timepoint RETTOP is not executed. The search help exit of the elementary search help is called at timepoint SELONE (at the
F4IF_SHLP_EXIT_EXAMPLE
This module has been created as an example for the interface and design of Search help exits in Search help.
All the interface parameters defined here are mandatory for a function module to be used as a search help exit, because the calling program does not know which parameters are actually used internally.
A search help exit is called repeatedly in connection with several
events during the F4 process. The relevant step of the process is passed on in the CALLCONTROL step. If the module is intended to perform only a few modifications before the step, CALLCONTROL-STEP should remain unchanged.
However, if the step is performed completely by the module, the following step must be returned in CALLCONTROL-STEP.
The module must react with an immediate EXIT to all steps that it does not know or does not want to handle.
Hope this info will help you.
***Reward points if found useful
Regards,
Naresh

How to Enhance the Standard Report?

Hi All,
How to Enhance the Standard Report? :
When I am trying to execute the query called ZTIMES in the user group SQ01 it is navigating the screen to selection-screen with some inputs to be given here on the selection screen company code is mandatory as an input. The company code field is having the search help and it is fetching the values for the company code from table called PROJ Table (Project definition Table).But I want the company code should fetch the value from the PRPS Table ( Work break structure(WBS Element) Level).
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http://help.sap.com/erp2005_ehp_02/helpdata/en/d2/cb4256455611d189710000e8322d00/frameset.htm
ABAP Query (Sq01)Modification
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Dear Gurus,
I need to add a Search Help (F4) to a Standard Screen Field VBAK-VSNMR_V in the standard Screen of VA01/Va02.....Can anyone please guide me how it can be done.
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Edited by: shaik sajid on Feb 2, 2009 8:38 AM

Hi shaik,
Refer to the following useful link:
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I have to add some custom fields in the SAP defined standard screen. When I go to that particular screen and try to change it to 'CHANGE' mode , it asks for Access Key. Please suggest me, how to add the custom fields.
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Its very simple.
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Hi,
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Regards.

Please see the steps:
1- Go to Transaction SPRO>Logistics>
General>Business Partner>Customer Control-->
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data: l_flg_active type BOOLE-BOOLE.
if i_screen_group = 'NEHA'.
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case i_taxi_fcode.
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>
Vivek Joshi wrote:
> Hello Router ,
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Enhancing a standard screen

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