How To Fix /SAPAPO/SNP422 - Backwards scheduling in period &2 ended due to productn horizn (&1 days)

/SAPAPO/SNP422 - Overview

• Message type: E = Error

• Message class: /SAPAPO/SNP -

• Message number: 422

• Message text: Backwards scheduling in period &2 ended due to productn horizn (&1 days)

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/SNP422 - Backwards scheduling in period &2 ended due to productn horizn (&1 days) ?

  The SAP error message /SAPAPO/SNP422 indicates that backwards scheduling in a specific period has ended due to the production horizon being exceeded. This error typically occurs in the context of Advanced Planning and Optimization (APO) within SAP, particularly in the Supply Network Planning (SNP) module.
  
  Cause:
  
  Production Horizon Exceeded: The error arises when the scheduling process attempts to schedule production or procurement activities beyond the defined production horizon. The production horizon is a time frame within which planning and scheduling can occur, and it is set in the system configuration.
  Configuration Settings: The production horizon may be set too short for the planning requirements, leading to scheduling issues when trying to plan for periods that fall outside this horizon.
  Planning Parameters: The planning parameters for the product or location may not be aligned with the actual demand or supply requirements, causing the scheduling to extend beyond the allowed limits.
  
  
  Solution:
  
  
  Adjust Production Horizon: Review and, if