How To Fix /SCWM/SERIAL018 - Serial number &1 is already assigned to HU &2

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCWM/SERIAL -

• Message number: 018

• Message text: Serial number &1 is already assigned to HU &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SCWM/SERIAL018 - Serial number &1 is already assigned to HU &2 ?

  The SAP error message /SCWM/SERIAL018 indicates that a serial number is already assigned to a Handling Unit (HU). This typically occurs in the context of warehouse management and logistics, particularly when dealing with serial numbers and handling units in the SAP Extended Warehouse Management (EWM) module.
  Cause:
  The error is triggered when you attempt to assign a serial number to a handling unit that is already associated with another handling unit. This can happen due to various reasons, such as:
  
  The serial number has already been used in a previous transaction.
  There is an attempt to reassign a serial number that is still linked to an existing handling unit.
  Data inconsistencies or errors in the system.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Serial Number Assignment:
  
  Use transaction codes like /SCWM/HU or /SCWM/Serial to check the current assignment of the serial number. Verify which handling unit the serial number is currently assigned to.
  
  
  
  Unassign the Serial Number:
  
  If the serial number is incorrectly assigned, you may need to unassign it from the existing handling unit. This can typically be done through the handling unit management functions in EWM.
  
  
  
  Reassign the Serial Number:
  
  After unassigning, you can then attempt to reassign the serial number to the desired handling unit.
  
  
  
  Check for Data Consistency:
  
  Ensure that there are no data inconsistencies in the system. This may involve checking for any open transactions or processes that might be holding onto the serial number.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or help resources for specific instructions related to handling units and serial number management in your version of SAP EWM.
  
  
  
  Contact SAP Support:
  
  If the issue persists and you cannot resolve it, consider reaching out to SAP support for further assistance. They may provide insights specific to your system configuration.
  
  
  
  Related Information:
  
  Handling Units (HUs): In SAP EWM, handling units are used to manage the physical packaging of goods. Each handling unit can contain one or more products and can be tracked using serial numbers.
  Serial Number Management: Serial numbers are unique identifiers assigned to individual items, allowing for tracking and management of inventory at a granular level.
  Transaction Codes: Familiarize yourself with relevant transaction codes in SAP EWM for managing handling units and serial numbers, such as /SCWM/HU, /SCWM/Serial, and others.
  
  By following these steps, you should be able to resolve the error and manage your handling units and serial numbers effectively.