BRF+ - Help Needed for Procedure Call for FM RFC_READ_TABLE

Dear Guru,
This is meant to be a prototype. Scenario is this based on a Centralize BRF+ Services with Satalite Systems. In this context lets assume two SAP Box. Box A (SAP ERP), Box B (BRF+ Server 7.02 NW SP6)
Busienss Rule is simple - Expose Customer Validation Service in BRF+ with Input of One Field (KUNNR) and Output of BOOLEAN (Yes, No).
Suggested Function Module - RFC_READ_TABLE with Destination in Box A(SAP ERP).
RFC_READ_TABLE
My question is:
1. Is Procedure Call Expression the right object to use for RFC?
2. Where can I specify the RFC Destination?
3. If not, should I create a New Function Module Wrapper that meant to call RFC_READ_TABLE with Destination?
4. Procedure Call Expression WebDynpro, I am not able to specify "Assigned Value" for Parameter "OPTIONS" which is a table.
I am able to specify other Parameters such as "QUERY_TABLE" and "OPTIONS"
Thanks
Leonard
Edited by: Leonard Tan on Mar 19, 2011 6:26 AM

I would create a local wrapper FM on BOX B to call into Box A for the table read. Maybe this would also allow to buffer the data locally in case it has to be read multiple times.
The procedure call as of today does not allow to do remote calls. Therefore you have no option to specify an RFC destination.
For the use of tables maybe create an error message. I could not follow your instructions.
Also consider to implement SP7 as soon as it is available. We did quite some corrections.

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