How To Fix CLHP018 - Parameter KEY contains errors

SAP Error Message - Details

• Message type: E = Error

• Message class: CLHP - Graphical Class Maintenance

• Message number: 018

• Message text: Parameter KEY contains errors

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 CLHP018 - Parameter KEY contains errors ?

  The SAP error message CLHP018, which states "Parameter KEY contains errors," typically occurs in the context of handling parameters in SAP, particularly when working with the Classification system or when using certain function modules or methods that require specific key parameters.
  Cause:
  The error usually arises due to one or more of the following reasons:
  
  Invalid Key Format: The key provided does not conform to the expected format or structure. This could be due to incorrect data types, length, or special characters.
  Missing Key Components: The key may be incomplete or missing required components that are necessary for the operation.
  Incorrect Data: The data being passed as the key may not exist in the system or may not be valid for the context in which it is being used.
  Configuration Issues: There may be issues with the configuration of the classification system or the specific object type being referenced.
  
  Solution:
  To resolve the CLHP018 error, you can take the following steps:
  
  Check Key Format: Ensure that the key you are using adheres to the expected format. Verify the data types and lengths of each component of the key.
  Validate Key Components: Make sure that all required components of the key are present and correctly populated.
  Review Data: Check if the data being referenced by the key exists in the system. You can do this by querying the relevant tables or using transaction codes that allow you to view the data.
  Consult Documentation: Refer to the SAP documentation for the specific function module or method you are using to understand the expected parameters and their formats.
  Debugging: If you have access to debugging tools, you can set breakpoints and analyze the values being passed to identify where the error is occurring.
  Configuration Check: If the issue persists, review the configuration settings related to the classification system or the specific object type to ensure everything is set up correctly.
  
  Related Information:
  
  Transaction Codes: Depending on the context, you may want to use transaction codes like CL02 (Change Class), CL03 (Display Class), or CL01 (Create Class) to manage classification data.
  SAP Notes: Check SAP Notes for any known issues or patches related to the error message CLHP018.
  Community Forums: SAP Community and other forums can be helpful for finding similar issues faced by other users and their solutions.
  
  If the problem continues after following these steps, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.