How To Fix /SCWM/UI_POST020 - Serial number &1 entered is unknown

/SCWM/UI_POST020 - Overview

• Message type: E = Error

• Message class: /SCWM/UI_POST -

• Message number: 020

• Message text: Serial number &1 entered is unknown

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.

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/SCWM/UI_POST020 - Details

• The SAP error message /SCWM/UI_POST020 indicating that the "Serial number &1 entered is unknown" typically occurs in the context of the SAP Extended Warehouse Management (EWM) module when a user attempts to process a serial number that the system does not recognize. This can happen for several reasons, and here are some potential causes, solutions, and related information:
  Causes:
  
  
  Serial Number Not Created: The serial number may not have been created in the system. This can happen if the item was not properly serialized during the goods receipt or production process.
  
  
  Incorrect Serial Number: The user may have entered the serial number incorrectly, leading to a mismatch with the existing records.
  
  
  Serial Number Not Assigned: The serial number might not be assigned to the specific material or batch in the system.
  
  
  Data Synchronization Issues: If there are issues with data synchronization between different systems (e.g., between EWM and ERP), the serial number may not be