Editing Standard ESS Travel Abap Webdynpro Application

Hi All,
We used to edit ESS Java webdynpro  applications by taking a copy of the standard application
with the help of Track created in Enterprise Portal.
Now we have switched Travel Application from Java Webdynpro to Abap Webdynpro.
and there is a requirement come up which requires the modification of standard WDA Application
for Travel Request.
Please let me know the procedure.
Can we take the copy of that Entire package and do the necessary changes in the copied Application
or can we proceed by editing the standard code ?
If we are taking the copy of the Entire package does the configuration will affect on copied Application?
Warm Regards
Hari Sankar M

Hi Hari Sankar,
I have done this in my last project. You can enhance the WD Component only if you are adding functionality. Be careful to find the right component and methods. You usually do not make the change on the application itself. 
If you want to tweak what the standard code does, that is a modification. If that, then I would advise you look into the configuration capabilities and the personalization if that meets the requirement.
Copying the component is going to be very hard. I would definitely not get into that at all costs since the Travel WDA uses the FPM framework as well. The links between the components are very complicated to simply copy and edit the z compoenent. It does not work like that.
Another thing: The specific challenge for the travel request is that the component you will need to change is being shared by the Expense report. It is the general data visual component. Be careful with that as you will have to differentiate in the code that you are calling it for the travel request.

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