How To Fix 56_CORE774 - ALE receiver determination failed, unknown error

SAP Error Message - Details

• Message type: E = Error

• Message class: 56_CORE - Class for Core Parts of Travel Management

• Message number: 774

• Message text: ALE receiver determination failed, unknown error

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message 56_CORE774 - ALE receiver determination failed, unknown error ?

  The SAP error message 56_CORE774 indicates that there was a failure in the ALE (Application Link Enabling) receiver determination process, and it is categorized as an "unknown error." This error can occur in various scenarios, typically when the system is trying to send or receive IDocs (Intermediate Documents) between different SAP systems or within the same system.
  Causes:
  
  Configuration Issues: Incorrect or incomplete configuration in the ALE settings, such as partner profiles, logical systems, or distribution model.
  Missing or Incorrect Partner Profiles: The partner profiles for the sender or receiver may not be set up correctly or may be missing.
  Logical System Configuration: The logical systems may not be defined properly in the system.
  Transport Layer Issues: Problems with the transport layer settings or issues with the transport routes.
  Authorization Issues: The user or process may not have the necessary authorizations to perform the ALE operations.
  Network Issues: Connectivity problems between the systems involved in the ALE communication.
  
  Solutions:
  
  
  Check ALE Configuration:
  
  Go to transaction WE20 to review the partner profiles. Ensure that the profiles for both the sender and receiver are correctly configured.
  Verify the logical systems in transaction SALE and ensure they are correctly defined and assigned.
  
  
  
  Review Distribution Model:
  
  Use transaction BD64 to check the distribution model. Ensure that the necessary message types and logical systems are included.
  
  
  
  Check IDoc Types:
  
  Ensure that the IDoc types being used are correctly defined and that the necessary segments are available.
  
  
  
  Review Authorization:
  
  Check if the user or process has the necessary authorizations to execute the ALE functions. You may need to consult with your security team.
  
  
  
  Check for Errors in the Application Log:
  
  Use transaction SLG1 to check the application log for any additional error messages or details that can provide more context about the failure.
  
  
  
  Network Connectivity:
  
  Ensure that there are no network issues between the systems involved. You can use tools like ping or telnet to check connectivity.
  
  
  
  Debugging:
  
  If the issue persists, consider debugging the ALE process to identify the exact point of failure. This may require technical expertise.
  
  
  
  SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that may address this specific error. There may be patches or updates that resolve known issues.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  WE20: Partner Profiles
  BD64: Distribution Model
  SLG1: Application Log
  SALE: Logical System Configuration
  
  
  
  Documentation: Review SAP documentation on ALE and IDocs for best practices and configuration guidelines.
  
  
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  
  
  If the problem persists after following these steps, it may be beneficial to engage SAP support for further assistance.