How To Fix /SMB/RUNTIME_ABAP026 - &1 access to table &2 is not allowed (ZDO violation)

SAP Error Message - Details

• Message type: E = Error

• Message class: /SMB/RUNTIME_ABAP -

• Message number: 026

• Message text: &1 access to table &2 is not allowed (ZDO violation)

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SMB/RUNTIME_ABAP026 - &1 access to table &2 is not allowed (ZDO violation) ?

  The SAP error message /SMB/RUNTIME_ABAP026 &1 access to table &2 is not allowed (ZDO violation) typically indicates a violation of the Zero Downtime Operation (ZDO) rules in the context of accessing database tables. This error is often encountered in scenarios where the system is configured to prevent certain types of database access during specific operations, such as upgrades or maintenance tasks, to ensure data consistency and integrity.
  Cause:
  
  ZDO Restrictions: The error arises when an ABAP program or function tries to access a database table that is restricted under the ZDO framework. This is usually to prevent data inconsistencies during system changes.
  Access Control: The specific table being accessed may have restrictions based on the current state of the system or the type of operation being performed.
  Configuration Issues: There may be misconfigurations in the ZDO settings or the way the ABAP code is written, leading to unauthorized access attempts.
  
  Solution:
  
  Review ZDO Configuration: Check the ZDO configuration in your SAP system to ensure that the access rules are correctly set up. This may involve consulting with your Basis team or SAP support.
  Modify ABAP Code: If you have access to the ABAP code that is causing the error, review it to ensure that it complies with ZDO rules. You may need to refactor the code to avoid accessing restricted tables during ZDO operations.
  Check Table Access Permissions: Ensure that the user or process attempting to access the table has the necessary permissions. This may involve adjusting roles or authorizations.
  Consult SAP Notes: Look for relevant SAP Notes that may address this specific error. SAP frequently updates its knowledge base with solutions for common issues.
  Contact SAP Support: If the issue persists and you cannot find a resolution, consider reaching out to SAP support for assistance. Provide them with the error details and context for better troubleshooting.
  
  Related Information:
  
  ZDO Documentation: Familiarize yourself with the Zero Downtime Operation documentation provided by SAP, which outlines the principles and guidelines for maintaining system integrity during upgrades and changes.
  ABAP Development Guidelines: Review best practices for ABAP development, especially regarding database access and error handling.
  System Logs: Check system logs (transaction SM21) for additional context or related errors that may provide more insight into the issue.
  
  By following these steps, you should be able to identify the cause of the error and implement a suitable solution.