BW 7.3 upgrade problem

Hello All,

      We recently upgraded  to BW 7.3 .After BW 7.3 upgrade we are facing problems in inventory data loads.Data is getting  loaded from data source to PSA but the subsequent data targets like  DSO and Cubes are showing yellow status with out adding any records and finally getting red after timed out.please help me if you came across this problem during BW 7.3 upgrade.

Thanks

Jacko