RFC-XI-File Adapter scenario

Hello SDN members,

We are about to start the configuring XI 3.0 for connecting the SRM Module as a source and Portal as a destination to transfer a file. We are planning to have a function module to generate the flat file from SRM.

We need to process the data file from SRM to a portal.

Could some body suggest me the process flow to accomomplish this ?

Appreciate your time.