How To Fix CX_WDK_CONTROLLER012 - Cannot revert to snapshot.

SAP Error Message - Details

• Message type: E = Error

• Message class: CX_WDK_CONTROLLER - FP/BE/BDC Controller Messages

• Message number: 012

• Message text: Cannot revert to snapshot.

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 CX_WDK_CONTROLLER012 - Cannot revert to snapshot. ?

  The SAP error message CX_WDK_CONTROLLER012 Cannot revert to snapshot typically occurs in the context of SAP Web Dynpro applications. This error indicates that the system is unable to revert to a previously saved state or snapshot of the application. Here are some potential causes, solutions, and related information for this error:
  Causes:
  
  Invalid Snapshot: The snapshot that the application is trying to revert to may be invalid or corrupted.
  State Management Issues: There may be issues with the state management of the Web Dynpro application, such as improper handling of the application state.
  Session Timeout: If the user session has timed out, the application may not be able to access the required snapshot.
  Configuration Issues: There may be configuration issues in the Web Dynpro application or the underlying system that prevent the snapshot from being accessed.
  Data Consistency: Changes in the underlying data model or inconsistencies in the data can lead to this error.
  
  Solutions:
  
  Check Snapshot Validity: Ensure that the snapshot you are trying to revert to is valid and has not been corrupted. You may need to debug the application to identify the issue.
  Review State Management: Review the state management logic in your Web Dynpro application. Ensure that the application correctly saves and retrieves snapshots.
  Session Management: Check if the user session is still active. If the session has timed out, prompt the user to log in again.
  Configuration Review: Review the configuration settings of the Web Dynpro application and the underlying system. Ensure that all necessary parameters are correctly set.
  Error Handling: Implement proper error handling in your application to manage situations where reverting to a snapshot fails. This can help provide a better user experience and prevent application crashes.
  Consult Logs: Check the application logs and system logs for any additional error messages or warnings that may provide more context about the issue.
  
  Related Information:
  
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Web Dynpro Documentation: Review the official SAP documentation for Web Dynpro to understand the state management and snapshot handling mechanisms.
  Community Forums: Engage with the SAP Community or other forums where developers discuss similar issues. You may find others who have encountered and resolved the same error.
  
  If the issue persists after trying the above solutions, it may be beneficial to reach out to SAP support for further assistance.