Adding the customer screen to enhance the header for Enjoy PO

Question

Dear Expert's,
My requirement is to add a new tab on Header for Enjoy PO by enhancing ME21N/ME22N and ME23N.
I have already implemented the BADI's ME_GUI_PO_CUST and ME_PROCESS_PO_CUST.
Actions Taken:
I have created a custom Function group and subscreen '9000'.
I have created a 'Z' structure as per the screen layout on the Header Tab
I have appended the custom fields in EKKO custom include CI_EKKO.
Reactions:
1. I am able to successfully display the screen on additional tab at header level.
2. The Display & Change is working perfectly for screen '9000' on ME21N/ME22N and ME23N header.
Problem:
I am unable to read the 'Z' fields from EKKO to populate the TAB Screen '9000' and neither able to save the 'Z' fields from '9000' TAb screen for header data.
I am not using any EXIT for this and have to use only BADI for this solution. Please help me to implement this solution using BADI only.
Also i have tried implementaing the transport Data object -> Model + Model -> Dynpro + Dynpro -> Model + Model -> Data object methods, but these methods are not getting triggered.
Please let me know if i can use EVENT_PBO & EVENT_PAI if yes , than how to trigger these events and where..?

Answer 1

Hi ,
try to enhance PO header using SAP Note 407975
Summary
Symptom
You are using SAP customer enhancement MM06E005. There is no sample source
code for this enhancement.
More Terms
User exit, customer enhancement, MM06E005, example, sample
Cause and Prerequisites
You want to activate user exit MM06E005. Note that this is a consulting
note and not a correction of the user exit.
Solution
You can use the sample source code attached here to recognize the basic
functions of the exit. This example is, however, only one of many options
that are offered by the customer enhancement.
The sample source code includes the following functions:
o Supply of an additional field on header level
o Supply of an additional field on item level
o Derivation of a field on item level from the copied reference
document
Now, in order to be able to use the sample source code, you must create
field ZZFLAG on the header level of the document and field ZZFIELD on the
item level.
Double-click on Include table CI_EKKODB
Enter the following values:
- Name Component type DType Length DecPlace Short text
- ZZFLAG CHAR1 CHAR 1 0 1-digit indicator
Save and activate the include table.
Double-click on Include table CI_EKPODB
Enter the following values:
- Name Component type DType Length DecPlace Short Text
- ZZFIELD CHAR1 CHAR 1 0 1-digit indicator
Save and activate the include table.
In order to activate the sample source code, you additionally have to carry
out the following changes on screens 0101 and 0111.
1. Screen 0101: Create the following fields:
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SAP Note 407975 - MM06E005: Collective note: Examples for
implementation
"Checkbox" Name: EKKO_CI-ZZFLAG
2. Screen 0111: Create the following fields:
"Input/output field" Name: EKPO_CI-ZZFIELD
"Pushbutton" Name: BUTTON
FctCode: ZZDETERMINE
The following assignments apply to the sample source code:
EXIT_SAPMM06E_006 --> LXM06F36
EXIT_SAPMM06E_007 --> LXM06F38
EXIT_SAPMM06E_008 --> LXM06F37
EXIT_SAPMM06E_009 --> LXM06F39
EXIT_SAPMM06E_016 --> LXM06F41
EXIT_SAPMM06E_017 --> LXM06F42
EXIT_SAPMM06E_018 --> LXM06F40
Copy the source code from the attachment and insert it into the
corresponding function modules. Save and activate the function modules.
Create the following variables in the corresponding TOP include in order
not to get any syntax errors:
INCLUDE ZXM06TOP
data: gl_aktyp type c,
gl_no_screen type c,
gl_rekko like ekko,
gl_ekko_ci like ekko_ci,
gl_ekpo_ci like ekpo_ci,
gl_ekpo like ekpo,
gl_ucomm like sy-ucomm.
types: begin of ekpo_tab,
ebeln like ekpo-ebeln,
ebelp like ekpo-ebelp,
ekpo like ekpo,
end of ekpo_tab.
data: gt_ref_ekpo_tab type table of ekpo_tab.
Save and activate the TOP include.
On header level, you can now store a character, X or space, via field
ZZFLAG on the database with the document and read it also again.
On item level, you can fill field ZZFIELD with a one-digit value and save
it with the document. If you copy this document, the system displays an
additional function button on tab page "Customer data". If you press this
button, the value of the reference document is copied to field ZZFIELD.
If you want to store the source code as sample source code in your system,
start Transaction SMOD. Enter MM06E005 as an enhancement. Select
"Components". Press "Change". Position the cursor on the corresponding
module and choose "Sample code". Create the corresponding include and copy
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SAP Note 407975 - MM06E005: Collective note: Examples for
implementation
the source code from the note. Save the include. Note that, of course,
syntax errors may occur when you check components. This is because the
includes of the sample code are not integrated into a program but rather
are completely independent and, therefore, do not have any relationship to
each other either. For this reason, only save the include and do not
activate or check it. The sample code has to be copied into the
corresponding function modules in order to become active.
If you use the user exit in the new purchase order, it is not guaranteed
that the customer screen is always processed. To make sure that possible
required fields are checked, include a corresponding message into the
EXIT_SAPMM06E_012. This screen is always processed.