If you want only a single forecast, your task is now complete. But you might want to produce updated forecasts later, as more data becomes available. In this case, you want to save the forecasting models you have created, so that you do not need to repeat the model selection and fitting process.
To save your work, fill in the Project field with the name of a SAS catalog member in which the system will store the model information when you exit the system. Later, you will select the same catalog member name when you first enter the Forecasting System, and the model information will be reloaded.
Note that any number of people can work with the same project file. If you are working on a forecasting project as part of a team, you should take care to avoid conflicting updates to the project file by different team members.