How To Fix WER_UI004 - Operation failed, see message log for details

SAP Error Message - Details

• Message type: E = Error

• Message class: WER_UI - UI related messages

• Message number: 004

• Message text: Operation failed, see message log for details

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.

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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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message WER_UI004 - Operation failed, see message log for details ?

  The SAP error message WER_UI004: Operation failed, see message log for details typically occurs in the context of SAP Workflow or Business Process Management (BPM) when an operation or action within a workflow step cannot be completed successfully.
  
  Cause
  
  Underlying error in the workflow step: The message itself is generic and indicates that a workflow operation failed. The actual cause is usually detailed in the message log or the workflow log.
  Possible reasons include:
  
  Missing or incorrect input data required for the operation.
  Authorization issues preventing the operation from completing.
  Technical errors such as RFC failures, connection problems, or system errors.
  Errors in custom code or user-exits called during the workflow step.
  Inconsistent or incomplete workflow container data.
  Issues with the task or agent assignment.
  
  
  
  
  Solution
  
  
  Check the Workflow Log:
  
  Go to transaction SWI1 (Workflow Log) or SWI2_FREQ (Workflow Log for a specific workflow).
  Find the instance where the error occurred.
  Look for detailed error messages or exceptions that provide more information about the failure.
  
  
  
  Analyze the Message Log:
  
  The error message suggests checking the message log for details.
  In the workflow log, expand the steps and look for error messages or dump information.
  Identify the exact step or operation that failed.
  
  
  
  Review Input Data and Container:
  
  Verify that all required data for the workflow step is correctly populated.
  Check the workflow container variables for completeness and correctness.
  
  
  
  Check Authorizations:
  
  Ensure that the user or system executing the workflow has the necessary authorizations.
  
  
  
  Debug or Trace:
  
  If the error is due to custom code, debug the workflow step or user-exit.
  Use transaction SWUD or SWDD to check the workflow definition.
  Use transaction ST22 to check for dumps related to the workflow.
  
  
  
  Check System Logs:
  
  Use transaction SM21 to check system logs for related errors.
  Use SM37 to check background jobs if the workflow step is executed in batch.
  
  
  
  Correct the Root Cause:
  
  Based on the detailed error found, fix the underlying issue (e.g., fix data, adjust authorizations, correct custom code).
  
  
  
  
  Related Information
  
  SAP Notes: Search SAP Support Portal for notes related to WER_UI004 or workflow errors.
  Workflow Transactions:
  
  SWI1 - Workflow Log
  SWI2_FREQ - Workflow Log for specific workflows
  SWDD - Workflow Builder
  SWUD - Workflow Builder (old)
  
  
  Common SAP Workflow Errors: Often, WER_UI004 is a wrapper message indicating failure in a workflow step; always check the detailed logs.
  Authorization Checks: Use transaction SU53 after reproducing the error to check for missing authorizations.
  RFC and Connection Issues: Use SM59 to test RFC destinations if the workflow step involves remote calls.
  
  
  Summary
  
  
  
  Aspect
  Details
  
  
  
  
  Error Message
  WER_UI004: Operation failed, see message log for details
  
  
  Cause
  Workflow step failure due to data, authorization, technical, or custom code issues
  
  
  Solution
  Check workflow log (SWI1), analyze detailed error, verify data and authorizations, debug
  
  
  Related Info
  SAP Notes, workflow transactions (SWI1, SWI2_FREQ), system logs (SM21), authorization (SU53)
  
  
  
  
  If you provide the detailed workflow log or the context in which this error occurs, I can help analyze the specific cause further.