The loading is done using an Excel file.
The BW transaction to be used is ZBW_SD_PC
Using this transaction, it is possible to enter new forecasts or update existing one and load data for both system : WP1 (Rhodia legacy) and PF1 (Solvay legacy).
Refer to the WIKI page :
https://wiki.solvay.com/display/TECHREP/Forecast#Forecast-HowtodownloadForecastfromBWsystem
Loading frequency
Loading frequency using the BW transaction is up to you!
Once data is loaded it is integrated in the Global Sales solution and in the CRM-analytics dashboard during the night job.
If you load several versions during the day only the last one will be loaded in BW during the night.