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

T8104 - Overview

• 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

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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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