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

/SCWM/SERIAL018 - Overview

• 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

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.

/SCWM/SERIAL018 - Details

• 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