How To Fix /SAPAPO/SEQ123 - The standard horizon and Customizing horizon do not overlap

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/SEQ -

• Message number: 123

• Message text: The standard horizon and Customizing horizon do not overlap

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/SEQ123 - The standard horizon and Customizing horizon do not overlap ?

  The SAP error message /SAPAPO/SEQ123 indicates that there is a mismatch between the standard horizon and the customizing horizon in the Advanced Planning and Optimization (APO) module. This error typically arises when the planning horizon defined in the system does not align with the settings in the configuration, leading to issues in planning processes.
  Cause:
  
  Horizon Configuration Mismatch: The standard horizon (the default planning horizon set by the system) does not overlap with the customizing horizon (the planning horizon defined in the configuration settings).
  Incorrect Settings: The settings for the planning horizon in the APO system may not be correctly defined or may have been changed without proper adjustments to related configurations.
  Master Data Issues: There may be inconsistencies in the master data that affect the planning horizon.
  
  Solution:
  
  
  Check Customizing Settings:
  
  Navigate to the APO customizing settings and verify the planning horizon settings. Ensure that the customizing horizon is set correctly and overlaps with the standard horizon.
  You can check the settings in transaction code /SAPAPO/MC8 (for planning book settings) or /SAPAPO/SDP94 (for the planning horizon settings).
  
  
  
  Adjust Planning Horizon:
  
  If the customizing horizon is too narrow or too wide, adjust it to ensure it overlaps with the standard horizon. This can involve changing the start and end dates of the planning horizon.
  
  
  
  Review Master Data:
  
  Ensure that the master data (like product, location, etc.) is correctly set up and that there are no discrepancies that could affect the planning horizon.
  
  
  
  Re-run Planning:
  
  After making the necessary adjustments, re-run the planning process to see if the error persists.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help notes related to planning horizons in APO for additional guidance and best practices.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as /SAPAPO/MC8, /SAPAPO/SDP94, and others that pertain to planning and configuration in APO.
  SAP Notes: Check for any SAP Notes that may address specific issues related to planning horizons and this error message.
  User Forums: Engage with SAP community forums or user groups for insights and solutions shared by other users who may have encountered similar issues.
  
  By following these steps, you should be able to resolve the error message /SAPAPO/SEQ123 and ensure that your planning horizons are correctly configured in SAP APO.