How To Fix CKMLAVR198 - Choose a valid function

SAP Error Message - Details

• Message type: E = Error

• Message class: CKMLAVR - Message Class for Cumulation and Revision

• Message number: 198

• Message text: Choose a valid function

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message CKMLAVR198 - Choose a valid function ?

  The SAP error message CKMLAVR198, which states "Choose a valid function," typically occurs in the context of the Material Ledger (ML) or during the execution of certain functions related to inventory valuation or cost management. This error indicates that the system is expecting a valid function to be selected or executed, but the input provided does not meet the criteria.
  Causes:
  
  Invalid Function Selection: The user may have selected a function that is not available or not applicable in the current context.
  Configuration Issues: There may be configuration settings in the Material Ledger or related modules that are not set up correctly.
  Authorization Issues: The user may not have the necessary authorizations to execute the selected function.
  Data Issues: There may be missing or incorrect data in the system that prevents the function from being executed properly.
  
  Solutions:
  
  Check Function Selection: Ensure that the function you are trying to execute is valid for the current transaction or context. Refer to the documentation or help files for guidance on valid options.
  Review Configuration: Check the configuration settings in the Material Ledger and related modules to ensure they are set up correctly. This may involve consulting with a functional consultant or reviewing the configuration in transaction SPRO.
  Authorization Check: Verify that the user has the necessary authorizations to perform the action. This can be done by checking the user roles and authorizations in transaction SU01 or SU53.
  Data Validation: Ensure that all required data is present and correct. This may involve checking master data, transaction data, or any other relevant information that the function relies on.
  Consult Documentation: Refer to SAP documentation or notes related to the specific transaction or function you are trying to use. This can provide insights into common issues and their resolutions.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CKMLCP (Material Ledger Closing) or CKMLAVR (Material Ledger Valuation).
  SAP Notes: Search for SAP Notes related to CKMLAVR198 in the SAP Support Portal for any known issues or patches.
  Community Forums: Consider checking SAP Community forums or other user groups for discussions related to this error, as other users may have encountered and resolved similar issues.
  
  If the problem persists after trying the above solutions, it may be beneficial to engage with your SAP support team or a consultant who specializes in Material Ledger and cost accounting.