How To Fix /SCWM/HUGENERAL163 - HU &1 was possibly changed by other users

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCWM/HUGENERAL -

• Message number: 163

• Message text: HU &1 was possibly changed by other users

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SCWM/HUGENERAL163 - HU &1 was possibly changed by other users ?

  The SAP error message /SCWM/HUGENERAL163 indicates that a Handling Unit (HU) was possibly changed by other users while you were trying to perform an operation on it. This is a common issue in systems where multiple users can access and modify the same data concurrently.
  Cause:
  
  Concurrent Access: The most common cause of this error is that another user has modified the Handling Unit (HU) you are trying to work with. This could happen if two users are trying to update the same HU at the same time.
  Locking Mechanism: SAP uses a locking mechanism to prevent data inconsistencies. If a user has locked the HU for editing, other users will receive this error when they attempt to access it.
  Session Timeout: If your session has timed out or if there was a network issue, the system may not recognize your current state, leading to this error.
  
  Solution:
  
  Refresh the Data: Try refreshing the screen or reloading the data to see if the HU has been updated. This can sometimes resolve the issue if the changes were made after you initially loaded the data.
  Check for Locks: Use transaction code SM12 to check for any locks on the HU. If you find that another user has locked it, you may need to wait until they release the lock or contact them to coordinate.
  Reattempt the Operation: After refreshing or checking for locks, try to perform the operation again.
  Communicate with Users: If you are in a multi-user environment, communicate with your colleagues to ensure that no one else is working on the same HU at the same time.
  Review User Authorizations: Ensure that you have the necessary authorizations to perform the operation on the HU. Lack of proper authorizations can sometimes lead to unexpected errors.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as HU02 (Change Handling Unit) and HU03 (Display Handling Unit) to manage HUs effectively.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. Sometimes, specific versions of SAP may have bugs that are documented in SAP Notes.
  System Logs: Review system logs for any additional error messages or warnings that may provide more context about the issue.
  Training and Documentation: Ensure that all users are trained on how to properly handle HUs and understand the implications of concurrent access.
  
  If the problem persists after trying these solutions, it may be necessary to involve your SAP Basis team or technical support for further investigation.