How To Fix HUGENERAL156 - Some of the HUs that are to be read could not be found or assigned

SAP Error Message - Details

• Message type: E = Error

• Message class: HUGENERAL - Handling Units - Packing

• Message number: 156

• Message text: Some of the HUs that are to be read could not be found or assigned

What causes this issue?

The system is to read handling units that are part of a hierarchy from
the database. The rest of the handling units in this hierarchy are
either blocked or do not exist.

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 HUGENERAL156 - Some of the HUs that are to be read could not be found or assigned ?

  The SAP error message HUGENERAL156 indicates that some Handling Units (HUs) that you are trying to read or process could not be found or assigned in the system. This error typically occurs in scenarios involving warehouse management, inventory management, or logistics processes where handling units are used to manage goods.
  Causes:
  
  Non-Existent Handling Units: The HUs you are trying to access may not exist in the system. This could be due to incorrect HU numbers or the HUs being deleted or archived.
  Incorrect Assignment: The HUs may not be properly assigned to the relevant document or process (e.g., delivery, shipment).
  Status Issues: The HUs might be in a status that does not allow them to be processed (e.g., blocked, in transit).
  Data Inconsistencies: There may be inconsistencies in the database or issues with the data integrity related to the handling units.
  Authorization Issues: The user may not have the necessary permissions to access or process the specified handling units.
  
  Solutions:
  
  Verify HU Existence: Check if the HUs you are trying to read actually exist in the system. You can do this by using transaction codes like HU02 (Display Handling Unit) to look up the HUs.
  Check Assignment: Ensure that the HUs are correctly assigned to the relevant documents (e.g., delivery, production order). You can use transaction codes like VL03N (Display Outbound Delivery) to check the assignment.
  Review HU Status: Check the status of the HUs to ensure they are not blocked or in a status that prevents processing. You can use the same transaction codes to review the status.
  Data Consistency Check: Run consistency checks or reports to identify any data inconsistencies related to handling units. This may involve using specific SAP reports or tools.
  User Authorization: Ensure that the user has the necessary authorizations to access and process the handling units. This may require coordination with your SAP security team.
  Consult Documentation: Review SAP documentation or notes related to handling units for any specific guidance or known issues.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as HU02, HU03, VL03N, and LT03 for handling unit management and logistics processes.
  SAP Notes: Check SAP Notes for any known issues or patches related to handling units and the specific error message.
  Support: If the issue persists, consider reaching out to your SAP support team or consulting with SAP support for further assistance.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.