Data Issue whith Server Expression and it sorted in the sales_data table

Hi

We have series like Revenue1 it is non-editable series and it is derived based on units and price.

we have server expression for revenue1 = sum(units*price)

Is revenue1 referes to sales_data.revennu1, i observeed some data is stored in this series.  as i want to calculate the value of this on fly and show this value. we have not used client expression here.

One more thing, on top of this revene1 series , we have created some other seires like reveneu delta.

Here my question is, why some data is stored in the sales_data.revenue1 , there is no BLE step corresponding to this series