How To Fix CNV_MBT_09_A021 - Internal error while creating the ALV grid.

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_MBT_09_A - Message class for drop-solution

• Message number: 021

• Message text: Internal error while creating the ALV grid.

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 CNV_MBT_09_A021 - Internal error while creating the ALV grid. ?

  The SAP error message CNV_MBT_09_A021 indicates an internal error that occurs while creating the ALV (ABAP List Viewer) grid. This error is typically associated with data conversion or migration processes, particularly in the context of SAP's data migration tools.
  Possible Causes:
  
  Data Issues: There may be inconsistencies or issues with the data being processed, such as null values, incorrect data types, or unexpected formats.
  Memory Limitations: The system may be running out of memory while trying to create the ALV grid, especially if the dataset is large.
  Configuration Issues: There may be configuration problems in the ALV settings or the underlying data model.
  Software Bugs: There could be bugs in the SAP version you are using, particularly if it is an older version or if there are known issues with the specific transaction or report.
  Authorization Issues: Lack of proper authorizations for the user executing the transaction can also lead to internal errors.
  
  Solutions:
  
  Check Data Integrity: Review the data being processed for any inconsistencies or errors. Ensure that all required fields are populated and that data types match expected formats.
  Increase Memory Allocation: If memory limitations are suspected, consider increasing the memory allocation for the SAP application server or optimizing the data being processed.
  Update SAP System: Ensure that your SAP system is up to date with the latest patches and support packages. Check SAP Notes for any known issues related to this error.
  Review ALV Configuration: Check the configuration settings for the ALV grid. Ensure that all necessary parameters are correctly set.
  Check Authorizations: Verify that the user has the necessary authorizations to execute the transaction and access the data.
  Debugging: If you have access to the ABAP development environment, you can debug the program to identify the exact point of failure and gather more information about the error.
  
  Related Information:
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide guidance on similar issues.
  Transaction Codes: Familiarize yourself with transaction codes related to data migration and ALV reporting, such as SE38 (ABAP Editor) or SE80 (Object Navigator).
  Community Forums: Check SAP Community forums or other online resources where users may have discussed similar issues and solutions.
  
  If the problem persists after trying the above solutions, consider reaching out to SAP Support for further assistance.