Forecast Option Not Available in Tableau Desktop When you select Analysis > Forecast , the options are not available (grayed out), and you are not able to use the forecasting functionality. Fix To fix the issue, take any one of the following steps that apply to your workbook. Remove table calculations. If the date field level is Exact Date, choose a different date level such as Week, Month, Qtr or Year which suits your requirements. Remove totals or percentages if they are displayed on the view. Make sure that there are at least five entries in your time series. For example, if your date level is set to years, you must have at least five years of data, if months, at least five months. Remove measures from the Filters shelf. Make sure the data does not contain any nulls. Cause A component of a data source or view that the forecasting functionality currently does not support is included in the view. More: In few instances, right...