To export Account Based Forecast data, the user needs to add the fields that capture the forecasting quantity data, including any sales team adjustments. The 'Adjusted Forecast Quantity' field shows the forecast quantity after applying the adjustment percentage for each account product forecast. The 'Total Adjusted Forecasted Quantity' field shows the sum of the adjusted forecast quantity for all the account product forecasts in the same account forecast1. These fields are available in the standard report type of 'Account Forecasts with Product Period Forecast', so there is no need to create a custom report type. References: What Is Manufacturing Cloud?, Create Holistic Forecasts with Advanced Account Forecasting