Detailed Scheduling Heuristics (SAP Library - Automated Production Planning and Optimization)

Detailed Scheduling Heuristics

Use

The following heuristics, that you can use in the production planning run or in the DS planning board for solving special scheduling tasks, are available for detailed scheduling:

Detailed scheduling heuristics (DS heuristics)

DS heuristic	Use
Schedule deallocated operations	Schedule selected deallocated operations
Lead time reduction	Reduce the lead time for orders that are at selected resources
Backlog rescheduling	Reschedule operations at a resource that lie in the past
Sequencing	Schedule selected operations in a predefined sequence
Manual sequencing	Schedule selected operations in a sequence that was already created manually. You can only use this heuristic in the DS planning board.
Merging orders on container resources	Merge selected synchronized planned orders at multi resources with storage characteristics ( container resources). You can only use this heuristic in the DS planning board.

Prerequisites

To be able to call up the heuristics in the menu for the DS planning board under Functions ® Heuristics, you must make these heuristics available in the DS planning board using a heuristic profile. You define heuristic profiles in Customizing for Production Planning and Detailed Scheduling, and you enter the following in Customizing for the corresponding application:

For the DS planning board called up directly, you enter the heuristic profile in the overall profile for the DS planning board or when calling up the DS planning board. For further information about the overall profile, see the Implementation Guide for the DS planning board that is called up directly.

For the DS planning boards that can be called up in the production planning table or in order processing, the system uses the heuristic profile that you entered in Customizing for the Production planning table or the Order view respectively. You enter additional heuristics in this heuristic profile that you use especially in the production planning table or in the order view.

Features

Strategy settings

Depending on the heuristic, you can change the selected strategy settings that the heuristic uses to schedule or reschedule operations. Certain strategy settings are permanently set by SAP and cannot be changed.

Planning Period

The system uses heuristics to reschedule operations that start in the planning period.

Activities

If you want to start a heuristic in the DS planning board, select the desired object and call up the heuristic by choosing Functions ® Heuristics. You can change the settings for the heuristics in the DS planning board by choosing Settings ® Heuristics.

If you want to use a heuristic in the production planning run, enter the heuristic and the object for which you want to execute the heuristic in the corresponding processing step in the production planning run.