Hello I am getting negative files in the INV01 module - I know the formulas are right as I got through the Sprint 3 exam but I am not sure why it is not populating the beginning inventory below are screenshots from each module.
It seems like you have turned off summaries in DAT01 module. Because of this there is no data on summary levels. If you change summarty type in DAT01 to "sum" you should get beginning inventories flowing to INV01 normally.
Thank you so much!