How To Fix HUSELECT004 - Handling unit &1 already in existence

HUSELECT004 - Overview

• Message type: E = Error

• Message class: HUSELECT - Messages from FB that execute database accesses

• Message number: 004

• Message text: Handling unit &1 already in existence

What causes this issue?

You have tried to create a handling unit with an identification that
already exists with status 'existing'.

How to fix this error?

Check if the already existing handling unit can be deleted or assign a
new number to the currently created handling unit to guarantee that the
handling units can be identified clearly.

Error message extract from SAP system. Copyright SAP SE.

HUSELECT004 - Details

• The SAP error message HUSELECT004 indicates that a handling unit (HU) with the specified identifier already exists in the system. This error typically occurs when you attempt to create a new handling unit with an identifier that is already in use.
  
  Cause:
  
  Duplicate Handling Unit: The most common cause is that the handling unit you are trying to create or use already exists in the system.
  Incorrect Input: There may be a typographical error in the handling unit number you are trying to create.
  System Configuration: In some cases, the system configuration may not allow for the creation of handling units with certain identifiers.
  
  
  Solution:
  
  
  Check Existing Handling Units: 
  
  Use transaction code HU02 (Display Handling Unit) or HU03 (Display Handling Unit with History) to check if the handling unit already exists.
  If it does exist, you may need to use that existing handling unit instead of creating a new one.
  
  
  
  Use a Different Identifier: 
  
  If you need to