How To Fix FMCA_ISR121 - Period key &1 unknown

FMCA_ISR121 - Overview

• Message type: E = Error

• Message class: FMCA_ISR - Form Handling

• Message number: 121

• Message text: Period key &1 unknown

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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message FMCA_ISR121 - Period key &1 unknown ?

  The SAP error message FMCA_ISR121, which states "Period key &1 unknown," typically occurs in the context of the Funds Management (FM) module when there is an issue with the period key being referenced in a transaction or configuration. The period key is used to define specific time periods for financial transactions, and if the system cannot recognize the period key, it will throw this error.
  
  Cause:
  
  Invalid Period Key: The period key specified in the transaction does not exist in the system.
  
  Configuration Issues: The period key may not have been properly configured in the system.
  Data Entry Error: There may be a typographical error in the period key entered by the user.
  Missing Customization: If the period key is part of a custom configuration, it may not have been set up correctly.
  
  
  Solution:
  
  Check the Period Key: Verify that the period key you are using is correct. You can do this by checking the configuration in