I have perfect working formula for EXCEL including the AGGREGATE element, but this doesn't work at Google Sheets obviously. I am using German MS Office, but I translate it into English for better understanding:
=IFERROR(INDEX(FORECAST_2021!$J$2:$JN$2;AGGREGATE(15;6;COLUMN(FORECAST_2021!$J$2:$JN$2)-2/((FORECAST_2021!$J$3:$JN$3="BALANCE")*(FORECAST_2021!$A$4:$A$500=B4)*(FORECAST_2021!$J$4:$JN$500=-1));1));"")
This is a pretty solid formula that helps me to bring back a value matching the earlierst date the product is out of stock. So this formula looks up for my product, the first time the stock value is "-1" (I set it like this) and bring back the date (its in the headline) for this "-1" stock value.
I am wondering how I can bring this formula into Google Sheets now.
Here's the Excel original:https://drive.google.com/file/d/1QR-5iJ7eRNqIFStbCC_SLrmobGosz-1M/view?usp=sharing
Anyone any hint?
Best wishes