How To Fix SCWN021 - Internal error: unable to find data block & at position &

SAP Error Message - Details

• Message type: E = Error

• Message class: SCWN - Messages Note installation and management

• Message number: 021

• Message text: Internal error: unable to find data block & at position &

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 SCWN021 - Internal error: unable to find data block & at position & ?

  The SAP error message SCWN021, which states "Internal error: unable to find data block & at position &," typically indicates an issue related to the internal data handling or data structure within the SAP system. This error can occur in various contexts, such as during data processing, report generation, or when accessing specific transactions.
  Possible Causes:
  
  Data Corruption: The data block that the system is trying to access may be corrupted or missing.
  Database Issues: There could be issues with the underlying database, such as inconsistencies or corruption in the database tables.
  Configuration Errors: Incorrect configuration settings in the SAP system may lead to the inability to locate the required data block.
  Software Bugs: There may be bugs in the SAP software or specific modules that lead to this error.
  Transport Issues: If the error occurs after a transport, it may be due to incomplete or incorrect transport of objects.
  
  Solutions:
  
  Check Data Integrity: Use transaction codes like SE11 (Data Dictionary) or SE16 (Data Browser) to check the integrity of the relevant database tables. Look for any inconsistencies or missing entries.
  Database Consistency Check: Run database consistency checks using transaction codes like DB02 or DBACOCKPIT to identify and resolve any database issues.
  Review Configuration: Verify the configuration settings related to the specific module or transaction where the error occurs. Ensure that all necessary settings are correctly configured.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error. There may be patches or updates available that resolve the issue.
  System Logs: Review system logs (transaction SM21) for any additional error messages or warnings that may provide more context about the issue.
  Recreate the Scenario: If possible, try to recreate the scenario that leads to the error to gather more information about the conditions under which it occurs.
  Contact SAP Support: If the issue persists and cannot be resolved through the above steps, consider reaching out to SAP Support for further assistance. Provide them with detailed information about the error, including the context in which it occurs.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE11, SE16, SM21, DB02, and DBACOCKPIT for troubleshooting.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  Documentation: Review SAP documentation related to the specific module or functionality where the error occurs for any known issues or troubleshooting steps.
  
  By following these steps, you should be able to diagnose and potentially resolve the SCWN021 error in your SAP system.