How To Fix /SAPAPO/CFM_MSG023 - Enter a valid frequency period ('W' or 'M')

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/CFM_MSG -

• Message number: 023

• Message text: Enter a valid frequency period ('W' or 'M')

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 /SAPAPO/CFM_MSG023 - Enter a valid frequency period ('W' or 'M') ?

  The SAP error message /SAPAPO/CFM_MSG023 indicates that there is an issue with the frequency period specified in the context of SAP Advanced Planning and Optimization (APO). This error typically arises when the system expects a valid frequency period but receives an invalid or unsupported value.
  Cause:
  The error is triggered when:
  
  The frequency period entered is not recognized by the system. The valid options are usually 'W' for weekly and 'M' for monthly.
  There may be a configuration issue or a data entry error where an incorrect value is being passed to the system.
  The user might be trying to use a frequency period that is not defined in the system settings.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Input Values: Ensure that the frequency period you are entering is either 'W' (for weekly) or 'M' (for monthly). Double-check for any typos or incorrect characters.
  
  
  Review Configuration: If you are using a custom program or transaction, verify that the logic for setting the frequency period is correctly implemented. Ensure that the program is not passing any invalid values.
  
  
  System Settings: Check the configuration settings in the SAP system to ensure that the frequency periods are correctly defined. This can usually be done in the customizing settings for APO.
  
  
  User Authorization: Ensure that the user has the necessary authorizations to perform the action that is generating the error. Sometimes, lack of permissions can lead to unexpected behavior.
  
  
  Consult Documentation: Refer to the SAP documentation or help files related to the specific transaction or process you are working with. This can provide insights into valid input values and configurations.
  
  
  Contact Support: If the issue persists after checking the above points, consider reaching out to your SAP support team or consulting SAP Notes for any known issues related to this error message.
  
  
  Related Information:
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that might address this specific error or provide additional context.
  Transaction Codes: Familiarize yourself with transaction codes related to APO configuration, such as /SAPAPO/CFM for configuration management.
  User Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.