SAP r3 Data flow

Any In depth documentation of the extracting from R3 as in how RFC is used and general architecture design of how R3 connection is established( involvement of RFC)
And a question that i had
We use Shared Directory Access option on SAP data store
SAP Working Directory - Work\Dir
Application Shared Directory -
servername\foldername
So the architecture we are currently using we have a middleware which handles all the transport
So for ex and R3 data flow writes .dat file on the SAP working Directory once its done we have an ABAP code that we run /ose38 to move the file from the working directory to the out directory and there is a shuttle that moves the file to the application shared directory so it is not a one step process
One step does the extract and after the shuttle moves it to the shared directory the other job reads the flat file from the shared directory
Now they want to change the architecture and use as a one step process.
I want to know what kind of access is needed on the Working directory to move the files to the application shared directory? Any special access
Does the working directory needs a write access to the shared directory?
Does DI handle the movement from Working directory to the shared directory or is there any function that needs to be run on the SAP to make this work?

Sounds like a custom_transfer method in case you find an exe that you can call which itself transports the file.
https://wiki.sdn.sap.com/wiki/display/BOBJ/ChosingtheTransport+Method

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If you didnt get it ..
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Edited by: Syed786 on Oct 23, 2009 5:09 PM
Edited by: Syed786 on Oct 26, 2009 11:31 AM

Hi sridhar
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The documentation should contain a mapping of the objects in the dataprovider, towards objects in the source system(s).
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Worldwide documentation is made on SAP BW projects, but no reply on automatic documentation.
A lot of time must be lost by manually creating documentation on mapping objects to source system fields.
==> SAP, please, work out a solution.
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List all objects for a multiprovider via the meta data repository, and paste in excel document.
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SAP r3 Data flow

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