How To Fix L3787 - HU is not known in system. Count not allowed.

SAP Error Message - Details

• Message type: E = Error

• Message class: L3 -

• Message number: 787

• Message text: HU is not known in system. Count not allowed.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message L3787 - HU is not known in system. Count not allowed. ?

  The SAP error message L3787 "HU is not known in system. Count not allowed." typically occurs when you are trying to perform an operation on a Handling Unit (HU) that the system does not recognize. This can happen in various scenarios, such as during goods movements, inventory counts, or when trying to process a Handling Unit in the warehouse.
  Causes:
  
  Non-Existent Handling Unit: The Handling Unit (HU) you are trying to reference does not exist in the system. This could be due to a typo in the HU number or because the HU was never created.
  HU Deletion: The HU may have been deleted or archived, making it unavailable for processing.
  Incorrect Status: The HU may be in a status that does not allow for the operation you are trying to perform (e.g., it may be locked or in a different process).
  Data Synchronization Issues: If you are working in a distributed system, there may be synchronization issues where the HU data has not been updated across all systems.
  
  Solutions:
  
  Verify HU Number: Double-check the HU number you are trying to use. Ensure that it is entered correctly and exists in the system.
  Check HU Status: Use transaction codes like HU02 (Display Handling Unit) to check the status of the HU. Ensure it is not locked or in a status that prevents the operation.
  Recreate HU: If the HU does not exist, you may need to recreate it if applicable.
  Check for Deletion: If the HU was deleted, you may need to check with your system administrator or use transaction codes to see if it can be restored or if you need to create a new one.
  Consult Logs: Check system logs or error logs for more detailed information about why the HU is not recognized.
  Data Synchronization: If you suspect a synchronization issue, ensure that all systems are updated and synchronized properly.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as HU02 (Display Handling Unit), HU03 (Change Handling Unit), and LT03 (Transfer Order Confirmation) to manage HUs effectively.
  Documentation: Refer to SAP documentation or help files for more detailed information on Handling Units and their management.
  Support: If the issue persists, consider reaching out to your SAP support team or consulting SAP Notes for specific patches or updates related to Handling Units.
  
  By following these steps, you should be able to identify the cause of the error and take appropriate action to resolve it.