What is selection horizon in SAP PP-MRP - Material Requirements Planning?

SAP Term: selection horizon

• Component: PP-MRP

• Component Name: Material Requirements Planning

• Description: The period of time, to which the importing of MRP elements to the stock and requirements list can be restricted. The selection horizon is defined in the selection rule. It is preset in Customizing or chosen on a user-specific basis by the user in the transaction.

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• Key Concepts: 
  Selection horizon is a term used in SAP's Material Requirements Planning (MRP) component. It is the time period in which the system considers the material requirements for a particular material. The selection horizon is determined by the user and can be set to any length of time. 
  
  How to use it: 
  The selection horizon is used to determine the time period in which the system will consider the material requirements for a particular material. The selection horizon can be set by the user in the MRP configuration settings. The selection horizon should be set to a length of time that is appropriate for the material being planned. 
  
  Tips & Tricks: 
  It is important to set the selection horizon to an appropriate length of time for each material being planned. If the selection horizon is too short, it may not capture all of the material requirements for that material. If it is too long, it may lead to unnecessary calculations and processing time. 
  
  Related Information: 
  The selection horizon is related to other MRP settings such as planning period, planning strategy, and lot size determination. It is important to understand how these settings interact with each other in order to properly configure MRP for a particular material.