How To Fix /SCF/CL_MESSAGES_ASN424 - Handling unit number will be overwritten by number range object

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCF/CL_MESSAGES_ASN -

• Message number: 424

• Message text: Handling unit number will be overwritten by number range object

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 /SCF/CL_MESSAGES_ASN424 - Handling unit number will be overwritten by number range object ?

  The SAP error message /SCF/CL_MESSAGES_ASN424 indicates that there is an issue with handling unit (HU) numbers being overwritten by a number range object. This typically occurs in the context of handling units in the SAP Supply Chain Management (SCM) or Extended Warehouse Management (EWM) modules.
  Cause:
  
  
  Number Range Configuration: The error usually arises when the system attempts to create or modify a handling unit, but the handling unit number being used is not valid or is being overwritten by a number range object. This can happen if the number range for handling units is not properly configured or if there is a conflict with existing handling unit numbers.
  
  
  Duplicate Handling Unit Numbers: If the handling unit number being assigned already exists in the system, the system may attempt to overwrite it, leading to this error.
  
  
  Custom Logic: If there are custom developments or enhancements in the system that manipulate handling unit numbers, they may inadvertently cause conflicts with the number range object.
  
  
  Solution:
  
  
  Check Number Range Configuration: 
  
  Go to the transaction code SNRO to check the number range object associated with handling units (usually /SCF/HU or similar).
  Ensure that the number range is correctly defined and that there are no gaps or overlaps in the number range.
  
  
  
  Review Handling Unit Creation Logic:
  
  If you are using custom logic to create handling units, review the code to ensure that it does not conflict with the standard number range logic.
  Ensure that the handling unit numbers being generated are unique and do not conflict with existing numbers.
  
  
  
  Use Automatic Number Assignment:
  
  If possible, configure the system to use automatic number assignment for handling units. This can help avoid conflicts with manually assigned numbers.
  
  
  
  Check for Existing Handling Units:
  
  Use transaction codes like HU02 or HU03 to check if the handling unit number already exists in the system. If it does, you may need to use a different number or delete the existing handling unit if it is no longer needed.
  
  
  
  Consult SAP Notes: 
  
  Check the SAP Support Portal for any relevant SAP Notes that may address this specific error message or provide additional guidance.
  
  
  
  System Logs and Traces: 
  
  Review system logs and traces to identify any additional context or errors that may be related to this issue.
  
  
  
  Related Information:
  
  Handling Units: In SAP, handling units are used to manage and track physical items in logistics processes. They can represent pallets, boxes, or any other packaging unit.
  Number Ranges: Number ranges in SAP are used to ensure that document numbers (like handling unit numbers) are unique and sequential. Proper configuration is crucial for avoiding conflicts.
  SAP Documentation: Refer to the official SAP documentation for more details on handling units and number range management.
  
  If the issue persists after following these steps, it may be beneficial to engage with SAP support or a qualified SAP consultant for further assistance.