Plan Structure
Check Made Superfluous By Planning Level and Planning
Package 
Use
With the uniform manual and automatic planning functions from Release 4.6C, you specify which profitability segments are to be permitted in planning. This eliminates the need for an extra check using a plan structure. For this reason, maintenance of the plan structure has been deleted from this release, as well as the option of entering a plan structure (during maintenance of the plan version, for example).