Could not generate a callback program ID error (831) in WEBI report

Hi all,

   One user getting DATABASE ERROR :[Data federator driver] connector PAA relational connection, could not generate a callback program ID (831).

you don not have authorization for the DWB object.(IES 10901)..

Is any one face this issue? User has S_RFC , S_RS_ADMWB, S_RS_COMP1 & S_RS_COMP authroizations, but still webi report gives the above error msg?

Any ideas?

Thanks

Suba