Reconcile SAP BI data with ECC

Hello Guru's,

I am trying to reconsile data in SAP BI aganist ECC.

The extractor is using the standard funtion module to pull the records in to BI.

Previously i worked on reconciling by writing the ABAP Programs on ECC and BI side

and compared it field by field . But i do not have that much of time to write the

Program . I saw some documents on creating the remote cubes and PSA reconcile and working on it.

what is the best way to validate the data or reconsile the data . I am in 2004s.