In flexible planning, you can either have the system create the planning hierarchy or you can create it manually. To find out how to create a planning hierarchy automatically, see
Master Data Generator in Flexible Planning.
You do not need to create a planning hierarchy for delta planning.
To create a
planning hierarchy manually:The initial screen for creating a planning hierarchy appears.
A dialog box appears inviting you to enter values for the characteristics from your information structure.

The units of the information structure on which you base your planning hierarchy must be defined in Customizing (in "Set parameters for info structures and key figures").

Do not leave gaps between characteristic values; that is, for every characteristic value that you enter, you must also enter characteristic values in the fields above it.
The data maintenance screen for the first level in your planning hierarchy appears.

If your planning method is consistent planning, you must specify characteristic values at all levels.
See also:
Calculating the Proportional Factors Automatically Planning Hierarchy Maintenance Functions