How To Fix CNVC_CCE_MSG030 - Custom Control Error in ALV Display

SAP Error Message - Details

• Message type: E = Error

• Message class: CNVC_CCE_MSG -

• Message number: 030

• Message text: Custom Control Error in ALV Display

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 CNVC_CCE_MSG030 - Custom Control Error in ALV Display ?

  The SAP error message CNVC_CCE_MSG030 typically indicates a custom control error in the ALV (ABAP List Viewer) display. This error can arise due to various reasons, often related to issues with the ALV grid or the custom control settings. Below are some common causes, potential solutions, and related information for this error:
  Causes:
  
  Custom Control Configuration: The error may occur if there are issues with the configuration of the custom control used in the ALV display.
  Data Issues: If the data being passed to the ALV is not in the expected format or contains invalid entries, it can lead to this error.
  Version Compatibility: The error might arise if there are compatibility issues between the SAP version and the custom control being used.
  Missing or Incorrect Parameters: If required parameters for the ALV display are missing or incorrectly set, it can trigger this error.
  User Authorizations: Lack of proper authorizations for the user trying to access the ALV report can also lead to this error.
  
  Solutions:
  
  Check Custom Control Settings: Review the configuration of the custom control used in the ALV display. Ensure that all settings are correct and compatible with the current SAP version.
  Validate Data: Ensure that the data being passed to the ALV is valid and in the correct format. Check for any null or invalid entries that might cause the display to fail.
  Update SAP Version: If you are using an older version of SAP, consider updating to a newer version that may have fixes for known issues related to custom controls.
  Review ALV Code: If you have custom code for the ALV display, review it for any logical errors or missing parameters. Ensure that all necessary parameters are being passed correctly.
  Check Authorizations: Verify that the user has the necessary authorizations to execute the ALV report. If not, adjust the user roles accordingly.
  Debugging: Use the ABAP debugger to trace the execution of the ALV report and identify the exact point where the error occurs. This can provide insights into what might be going wrong.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to the CNVC_CCE_MSG030 error. SAP frequently releases updates that address specific bugs.
  ALV Documentation: Review the official SAP documentation on ALV and custom controls for best practices and troubleshooting tips.
  Community Forums: Engage with SAP community forums or support channels where other users may have encountered similar issues and can provide insights or solutions.
  
  If the problem persists after trying the above solutions, consider reaching out to SAP support for further assistance.