We are preparing our system for go live and would like to upload some sales figures from this year into the Generate Forecasts form to predict next years (2024) demand. I have extracted the figures from our current system and am preparing an upload into the screen below. The upload will be a list of items c/w begin and end dates and quantities. My question is; do I enter the begin and end dates for each month as historical (e.g. between 01/05/23 & 31/05/23 we sold 35 of a particular item) or predicted (e.g. between 01/05/24 & 31/05/24 we think we are going to sell 35 of a particular item based on last years’ sales)?