How To Fix VO747 - Unexpected return code DSYS_SHOW: &

SAP Error Message - Details

• Message type: E = Error

• Message class: VO - W&S: Rough workload forecast + picking wave

• Message number: 747

• Message text: Unexpected return code DSYS_SHOW: &

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 VO747 - Unexpected return code DSYS_SHOW: & ?

  Certainly! Here's a detailed explanation for the SAP error message:
  
  SAP Error Message:
  VO747 Unexpected return code DSYS_SHOW: &
  
  1. Cause
  The error message VO747 with the text "Unexpected return code DSYS_SHOW: &" typically occurs when a function module or a system call related to the display or GUI subsystem returns an unexpected or error code. Specifically, DSYS_SHOW is a function or method involved in displaying system dialogs or screens.
  Common causes include:
  
  A problem in the GUI interface or frontend communication.
  An issue with the SAP GUI version or patch level incompatibility.
  A missing or corrupted SAP GUI component or control.
  An error in the custom code or standard SAP code that calls DSYS_SHOW or related display functions.
  Authorization or system environment issues that prevent proper display or execution of the function.
  
  
  2. Solution
  To resolve the VO747 error, consider the following steps:
  
  
  Check SAP GUI Version:
  
  Ensure that the SAP GUI installed on the client machine is up-to-date and compatible with the SAP backend system.
  If outdated, upgrade to the latest SAP GUI patch.
  
  
  
  Review Custom Code:
  
  If the error occurs in a custom program or enhancement, debug the code to check the parameters passed to DSYS_SHOW or related function modules.
  Verify that all required parameters are correctly set and that no unexpected values are passed.
  
  
  
  Check System Logs and Dumps:
  
  Use transaction ST22 to check for any short dumps related to this error.
  Use SM21 to review system logs for related errors.
  
  
  
  Authorization Check:
  
  Verify that the user has the necessary authorizations to execute the function or display the dialog.
  Missing authorizations can cause unexpected return codes.
  
  
  
  SAP Notes and Support:
  
  Search the SAP Support Portal for notes related to VO747 or DSYS_SHOW.
  Apply any relevant SAP Notes or patches.
  
  
  
  Frontend Troubleshooting:
  
  Clear SAP GUI cache and temporary files.
  Restart the SAP GUI and try again.
  If possible, test on a different client machine to rule out local issues.
  
  
  
  Contact SAP Support:
  
  If the problem persists, raise a support ticket with SAP, providing detailed information including the exact scenario, system versions, and any dumps or logs.
  
  
  
  
  3. Related Information
  
  
  Transaction Codes:
  
  ST22 - ABAP Runtime Error Analysis
  SM21 - System Log
  SE37 - Function Module Testing (to test DSYS_SHOW if accessible)
  
  
  
  Function Module / Method:
  
  DSYS_SHOW is related to system dialogs or display functions in SAP GUI.
  
  
  
  SAP Notes:
  
  Check SAP Notes for any known issues with DSYS_SHOW or VO747.
  
  
  
  Common Similar Errors:
  
  Errors related to GUI display or frontend communication.
  Authorization errors causing unexpected return codes.
  
  
  
  
  If you provide more context (e.g., when the error occurs, custom or standard transaction, system version), I can help narrow down the cause and solution further.