Replication Based Development question

HI experts,
I am trying to understand the replication based development in SUP 2.0. However i have couple of questions;
1] Do i need to add any or major part of the Generated Code when i actually use it in BB, iOS or in .NET framework to actually get in action ?
2] Does SAP requires only Replication Based Deployment for its app or in workflow ?
Thanks & regards
Yogesh

Hi,
I eventually will develop the Native APP as my business requirement is complex & I want more functionality in app than i can get it in workflow to be honest.
But to start up with testing the Standard BAPI & the RFC's i am getting errors as below;[When i refer BAPI its BAPI_PO_GETITEMSREL]
1] System.FormatException: String was not recognized as a valid DateTime.
I am getting this error for RFC based on BAPI_PO_GETITEMSREL & also standard BAPI for PO_GETLIST. Also as i said to start up i did not added to many info in RFC just added 2 fileds of Delivery Date & Reason code so that i can handle them in UI to process the further navigation. But I am just stuck up as why its happening. Because i can see everything in preview as i want
2] <<Pass on the release group when invoking the method>> = But I am actually supplying the REL_GROUP & REL_CODE to the BAPI; i am using here SAP standard purchase order bapi, called BAPI_PO_GETITEMSREL
3] Error getting SAP template for ZBAPI_PO_GETITEMSREL. I have no idea why this is the case.
At first i thought may be SUP is parsing some NULL value in any of filed while its connecting to EIS but there are none NULL items in the MBO.
4] Field NUMBER is not a member of BAPIRETURN. This is the error for both RFC & Standard BAPI.
5] And when i tried to see IF AT ALL i can get it work with FLIGHTS BAPI still i am getting error when i use the MBS workflow for simple app.
here the error is "java.io.IOException:JASON:expected character,found EOF "
But here its just 1 difference that I could see the list of flights in iOS simulator only once since then i am getting this error.
Wel.. i guess lot of errors i have mentioned.. Hope you could be of great assistance.
Best Regards
Yogesh

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> Anybody is welcomed to share any first-hand expreience, links, opinions,
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> Interested in all opinions or comments concerning
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> with the limitations or extendability of Slide
Presentation Vs.
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