You have created a data view for this task. The use of a separate data view to release a mass demand plan has performance benefits. The data view contains:
A future planning horizon only (no historical horizon, unless you want to release data in the past)
The start date for which data is released is the first day of the planning horizon. The planning horizon is defined in the data view you specify in the planning job.
Only the key figure(s) that you want to release to Supply Network Planning