How To Fix LF799 - More than one entry exists for HU &1 / material &2

SAP Error Message - Details

• Message type: E = Error

• Message class: LF - Mobile Computing in Warehouse Logistics

• Message number: 799

• Message text: More than one entry exists for HU &1 / material &2

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 LF799 - More than one entry exists for HU &1 / material &2 ?

  The SAP error message LF799 indicates that there is more than one entry for a Handling Unit (HU) and a specific material in the system. This typically occurs in scenarios where the system expects a unique handling unit for a given material, but finds multiple entries instead. Here’s a breakdown of the cause, potential solutions, and related information:
  Cause:
  
  Duplicate Handling Units: The most common cause is that there are multiple handling units created for the same material, which the system cannot reconcile.
  Incorrect Configuration: The system configuration may not be set up to handle multiple entries correctly for the specific process you are executing.
  Data Integrity Issues: There may be data integrity issues in the database, such as incorrect or incomplete data entries.
  User Error: Users may have inadvertently created multiple handling units for the same material during the packing or shipping process.
  
  Solution:
  
  Check Handling Units: Use transaction codes like HU02 (Display Handling Unit) or HU03 (Display Handling Unit with Material) to check the existing handling units for the specified material. Identify and resolve any duplicates.
  Delete or Merge Duplicates: If duplicates are found, you may need to delete unnecessary handling units or merge them if applicable. Ensure that this action does not violate any business rules or data integrity.
  Review Configuration: Check the configuration settings in the SAP system related to handling units and materials. Ensure that the system is set up to handle the expected scenarios correctly.
  Data Cleanup: If there are data integrity issues, consider running data cleanup processes or using transaction codes like SE16 to analyze the underlying tables for inconsistencies.
  Consult Documentation: Review SAP documentation or notes related to handling units and materials for any specific guidelines or known issues.
  Contact Support: If the issue persists and cannot be resolved through the above steps, consider reaching out to SAP support for further assistance.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as HU01 (Create Handling Unit), HU02, HU03, and LT03 (Transfer Order Confirmation).
  SAP Notes: Check SAP Notes for any known issues or patches related to handling units and materials.
  User Training: Ensure that users involved in the packing and shipping processes are adequately trained to avoid creating duplicate handling units.
  
  By following these steps, you should be able to identify the cause of the LF799 error and implement a solution to resolve it.