How To Fix WRF_PPW804 - Message queue was not initialized

SAP Error Message - Details

• Message type: E = Error

• Message class: WRF_PPW - Price Planning Workbench

• Message number: 804

• Message text: Message queue was not initialized

What causes this issue?

Messages that belong to action class &V1&/&V2& are to be written to the
message log.
However, the output log was opened with action class &V3&/&V4&.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WRF_PPW804 - Message queue was not initialized ?

  The SAP error message WRF_PPW804: Message queue was not initialized typically occurs in the context of SAP Workflow or Process Integration scenarios where the message queue infrastructure is expected to be set up but is found uninitialized or unavailable.
  
  Cause
  
  The message queue system (used for asynchronous communication in SAP Workflow or Process Integration) has not been properly initialized or started.
  The underlying message queue service (such as SAP's own message queue or an external middleware queue) is not running or configured.
  Missing or incorrect configuration in the workflow or process integration environment related to message queue parameters.
  Transport or system copy issues where the message queue setup was not carried over or activated.
  Insufficient authorizations or system inconsistencies preventing the initialization of the message queue.
  
  
  Solution
  
  
  Check Message Queue Service Status:
  
  Verify that the message queue service (e.g., SAP's internal queue or external middleware like IBM MQ, if used) is running.
  For SAP internal queues, check transaction SMQS (Queue Monitor) or SMQ1/SMQ2 (Outbound/Inbound queues) to see if queues are active.
  
  
  
  Initialize or Restart the Message Queue:
  
  If the queue is not initialized, try to initialize or restart it.
  Use transaction SWU3 (Workflow Customizing) to check and activate workflow settings, including message queue setup.
  Restart the SAP system or relevant application servers if necessary.
  
  
  
  Check Workflow and Queue Configuration:
  
  Verify the configuration in transaction SWF_CONFIG or related workflow configuration transactions.
  Ensure that the message queue parameters are correctly set in the system profile parameters or workflow customizing.
  
  
  
  Check Authorizations:
  
  Ensure the user or process triggering the workflow has the necessary authorizations to access and initialize the message queue.
  
  
  
  Review System Logs:
  
  Use transaction SM21 (System Log) and ST22 (Dump Analysis) to check for related errors that might give more clues.
  
  
  
  Apply SAP Notes:
  
  Search the SAP Support Portal for notes related to WRF_PPW804 for any patches or known issues.
  
  
  
  
  Related Information
  
  
  Transactions:
  
  SMQS – Queue Monitor
  SMQ1/SMQ2 – Outbound/Inbound Queue Monitor
  SWU3 – Workflow Customizing Check
  SWF_CONFIG – Workflow Configuration
  SM21 – System Log
  ST22 – ABAP Dump Analysis
  
  
  
  SAP Components:
  
  SAP Workflow (BC-WF)
  SAP Process Integration (PI)
  Middleware message queues (if integrated)
  
  
  
  SAP Notes:
  
  Check SAP Notes for message queue initialization issues, e.g., notes related to workflow or PI message queue problems.
  
  
  
  
  If the problem persists after these steps, consider raising a support ticket with SAP, providing system logs and details about the environment and recent changes.