How To Fix T8104 - Horizon &1 is greater than end of underlying period &2

SAP Error Message - Details

• Message type: E = Error

• Message class: T8 - Analysis system evaluations

• Message number: 104

• Message text: Horizon &1 is greater than end of underlying period &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message T8104 - Horizon &1 is greater than end of underlying period &2 ?

  The SAP error message T8104, which states "Horizon &1 is greater than end of underlying period &2," typically occurs in the context of planning or forecasting within SAP systems, particularly in modules like SAP Integrated Business Planning (IBP) or SAP Advanced Planning and Optimization (APO). This error indicates that the planning horizon you are trying to set or use exceeds the defined end date of the underlying planning period.
  Cause:
  
  Planning Horizon Misconfiguration: The planning horizon you have defined (e.g., the number of periods into the future for which you want to plan) is set to a value that goes beyond the end date of the planning period configured in the system.
  Period Definition Issues: The underlying period (e.g., monthly, weekly) may not be correctly defined or may have been changed, leading to a mismatch with the planning horizon.
  Data Entry Errors: There may be a mistake in the data entry where the horizon is incorrectly specified.
  
  Solution:
  
  Check Planning Horizon Settings: Review the settings for the planning horizon in your configuration. Ensure that the horizon does not exceed the end date of the defined planning period.
  Adjust Period Definitions: If the underlying period has been modified, ensure that the planning horizon is adjusted accordingly. You may need to extend the planning period if necessary.
  Review Configuration: Go to the configuration settings in SAP and verify the planning area settings, including the start and end dates of the planning periods.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance on configuring planning horizons and periods in your version of SAP.
  Test Changes: After making adjustments, test the changes to ensure that the error no longer occurs.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Transaction Codes: Familiarize yourself with transaction codes related to planning configuration, such as /SAPAPO/SDP94 for planning book settings or /SAPAPO/MC62 for planning area settings.
  User Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  If the problem persists after following these steps, it may be beneficial to consult with your SAP support team or a consultant who specializes in SAP planning modules.