How To Fix /SCWM/UI_PACKING151 - HUs were changed; refreshing is not allowed

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCWM/UI_PACKING -

• Message number: 151

• Message text: HUs were changed; refreshing is not allowed

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.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message /SCWM/UI_PACKING151 - HUs were changed; refreshing is not allowed ?

  The SAP error message /SCWM/UI_PACKING151 HUs were changed; refreshing is not allowed typically occurs in the context of the SAP Extended Warehouse Management (EWM) module, particularly when dealing with handling units (HUs) during packing processes. This error indicates that there have been changes to handling units that prevent the current operation from being refreshed.
  Cause:
  
  Concurrent Changes: The error often arises when there are concurrent changes made to handling units (HUs) in the system. For example, if one user is modifying a handling unit while another user tries to refresh the packing screen, the system will prevent the refresh to avoid inconsistencies.
  Session Conflicts: If multiple sessions are open and changes are made in one session, it can lead to conflicts when trying to refresh in another session.
  Data Locking: The system may have data locking mechanisms in place that prevent refreshing when certain conditions are met.
  
  Solution:
  
  Refresh the Session: Close the current session and reopen it to see if the error persists. This can sometimes clear temporary locks or conflicts.
  Check for Concurrent Users: Ensure that no other users are making changes to the same handling units. If possible, coordinate with other users to avoid simultaneous modifications.
  Review Change Logs: Check the change logs for the handling units to identify what changes were made and by whom. This can help in understanding the source of the conflict.
  Use the Correct Transaction: Make sure you are using the correct transaction codes and processes for packing and handling units.
  Consult with IT Support: If the issue persists, it may be necessary to consult with your IT support team or SAP Basis team to investigate any underlying system issues or to check for any necessary updates or patches.
  
  Related Information:
  
  Handling Units (HUs): In SAP EWM, handling units are used to manage the physical packaging of goods. They can represent pallets, boxes, or any other type of packaging.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions for common problems.
  User Documentation: Refer to the SAP EWM user documentation for guidance on handling units and packing processes to ensure compliance with best practices.
  
  By following these steps, you should be able to resolve the error and continue with your packing operations in SAP EWM.