ABAP/PXA sap parameter should be shared in BW system -- Plesae help

Hello All,

Please let us know the value of the ABAP/PXA sap parameter should be shared in BW system

Current Value of ABAP/PXA sap parameter  is "gen_remote".

What would be the impact if we change the value from gen_remote to Shared.

What is the advantage of gen_remote than shared

My BW version is

SAP_BASIS    731    0014    SAPKB73114    SAP Basis Component

Oracle 11.2.0.4

AIX 7.1

Regards

Subb