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Defining Time-Based Constraints in Interactive Planning (New)

Use

A number of constraints (such as the capacity constraints defined for resources) are taken into account during the SNP optimization run. Before now, you could define these constraints at resource level but not on a time basis.

However, in certain circumstances constraints need to be defined on a time basis; for example, if the product quantity provided by a supplier varies from period to period. As of SAP APO 4.0, you can define time-based constraints like these in interactive planning. You can set the following bounds (limits):

  • Upper bound for external procurement (at product-location level)
  • Upper bound for stock on hand (at product-location level)
  • Upper bound for production (at product-PPM level)
  • Upper bound for transportation (at product-transportation lane level).

New planning area, planning book, and data view

The following new standard SNP planning area, planning book, and data view are now available for defining time-based constraints: Planning book 9ATSOPT; data view OPT_TSBD; planning area 9ASNP04. In addition to the standard interactive Supply Network Planning functionality, the 9ATSOPT planning book also has a new table in the lower screen area with four new key figures called: Procurement Upper Bound, Storage Upper Bound, Production Upper Bound, and Transportation Upper Bound. You can define upper bounds for the individual key figures in specific periods. The system then takes these upper bounds into account when you run the SNP optimizer. The table also has a key figure that corresponds to each upper bound with which you can show that the actual value is zero (otherwise, the value 0 indicates that no upper bound has been specified).

Effects on Existing Data

Effects on Data Transfer

Effects on System Administration

Effects on Customizing

The following two indicators are available as extended settings in the SNP optimizer profile:

  • Ignore Time-Based Constraints. You set this if you do not want time-based constraints to be considered during the optimization run. This would be advisable if you wanted to use an SNP optimization bound profile for the optimization run.
  • Consider Upper Bounds for Stock as a Soft Constraint. You set this if you want the optimizer to regard the upper bound for stock as a soft constraint rather than a pseudo-hard constraint. The optimizer can calculate penalty costs to violate soft constraints. You define these penalty costs in a time-based key figure in the aforementioned planning book.

See also the IMG documentation regarding SNP optimizer profiles.

Further Information

For more information, see Defining Time-Based Constraints in Interactive Planning in the SNP documentation.






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