How To Fix 5C127 - Only A, B, K or L allowable as lists

SAP Error Message - Details

• Message type: E = Error

• Message class: 5C - HR: Messages for Switzerland

• Message number: 127

• Message text: Only A, B, K or L allowable as lists

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 5C127 - Only A, B, K or L allowable as lists ?

  The SAP error message 5C127: Only A, B, K or L allowable as lists typically occurs when you are trying to use a selection option in a report or transaction that does not accept the type of list you are providing. This error is related to the selection criteria in SAP, particularly when using selection screens for reports or queries.
  Cause:
  The error arises when:
  
  You are using a selection option that is not compatible with the expected input. For example, if the system expects a specific type of list (like A, B, K, or L) and you provide a different type, it will trigger this error.
  The selection criteria might be incorrectly configured or the data being inputted does not match the expected format.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Selection Options: Review the selection options you are using in the report or transaction. Ensure that you are only using the allowed types (A, B, K, or L).
  
  A: For ranges (e.g., between two values).
  B: For single values.
  K: For key fields.
  L: For lists of values.
  
  
  
  Correct Input Format: Make sure that the data you are entering matches the expected format for the selection criteria. If you are using a list, ensure it is formatted correctly.
  
  
  Review Documentation: Check the documentation for the specific report or transaction you are using to understand the expected input types and formats.
  
  
  Consult with SAP Support: If you are unable to resolve the issue, consider reaching out to your SAP support team or consulting the SAP community for further assistance.
  
  
  Related Information:
  
  Transaction Codes: This error can occur in various transaction codes where selection screens are used, such as reports or queries.
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional context.
  Debugging: If you have access to debugging tools, you can analyze the program logic to see where the error is being triggered.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.