How To Fix FT109 - Periods to be calculated are not all in ascending order

FT109 - Overview

• Message type: E = Error

• Message class: FT - FI Table Maintenance Error Messages

• Message number: 109

• Message text: Periods to be calculated are not all in ascending order

Self-Explanatory Message

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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 FT109 - Periods to be calculated are not all in ascending order ?

  The SAP error message FT109, which states "Periods to be calculated are not all in ascending order," typically occurs in the context of financial calculations, such as during the execution of a transaction that involves period-based calculations (e.g., depreciation, interest calculations, etc.). This error indicates that the periods specified for the calculation are not arranged in a sequential or ascending order, which is a requirement for the system to process the data correctly.
  
  Cause:
  
  Incorrect Period Sequence: The periods you are trying to process (e.g., fiscal periods, months, or years) are not listed in ascending order. For example, if you have periods 2023-01, 2023-03, and 2023-02, this will trigger the error because 2023-02 is out of order.
  Data Entry Errors: Manual entry of periods may lead to mistakes, such as skipping a month or entering periods in the wrong order.
  
  Configuration Issues: In some cases, the configuration of the financial module may not be