EEWB Vs Object oriented extensions

Question

Hi all,
   In our implementation we have scenarios to add fields in business partners, sales orders and some other transactions.
Now I have the basic doubt.
1. SAP releases EEWB (Easy enhancement workbench) and there is also a procedural way to enhance it manually
by doing the following steps.
1. Enhancing the BDoc
2. enhancing the crm adapters and R/3.
3. Enhancing the field layout directly.
So in what scenarios should I use EEWB Vs writing middleware code....
Your inputs are highly appreciated..
thanks
Jothi

Answer 1

Hi,
After reading the EEWB documentation now have lot of doubts.
1.Is it possible to extend Contacts with the BUPA object. any idea.
2.Can someone tell me what kind of enhancements will not be possible by EEWB and should use the manual approach of extending the middleware.
3. Also what are the bottlenecks in using the EEWB.
Regarding field enhancemnt Lets says a field is added in the sales order or business partner through EEWB .
   Now the field is required in the sales order UI replicated into R/3.
Grey areas in the R/3 side.
1, Now will the required R/3 structures be created automatically for the Zfield.
(because the document describes post-processing for business partners. Is that mean
only for business partners we need to do manually and for business transactions not.
Also the documentation is not clear)
2. If the structures corresponding to zfields are created automatically then will the
   field be displayed in the UI automatically in R/3 or should we do some manual enhancement
   in the screen layout in R/3
Grey areas in the CRM side.
1. Now the field is added and is displayed in CRM online. Lets say some validations are required
to be performed on the Zfield before saving the sales order.  Should I use BAPI's or is there any
function generated in EEWB where I can add validations or is there any other suitable place.
Also what are the activities that should be executed (ie postprocessing activities) to be
done after ehancing fields through EEWB.
your inputs are highly appreciated.
thanks
Jothi.