How To Fix QA420 - Inspection Lot &1: Serial Number &2 does not exist yet

SAP Error Message - Details

• Message type: E = Error

• Message class: QA - QM : Inspection lots

• Message number: 420

• Message text: Inspection Lot &1: Serial Number &2 does not exist yet

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message QA420 - Inspection Lot &1: Serial Number &2 does not exist yet ?

  The SAP error message QA420 indicates that there is an issue with an inspection lot and a serial number. Specifically, it means that the system cannot find the specified serial number associated with the inspection lot. Here’s a breakdown of the cause, potential solutions, and related information:
  Cause:
  
  Serial Number Not Created: The serial number referenced in the inspection lot has not been created or recorded in the system.
  Incorrect Serial Number: The serial number entered may be incorrect or mistyped.
  Inspection Lot Status: The inspection lot may be in a status that does not allow for the processing of serial numbers.
  Data Synchronization Issues: There may be a delay or issue in data synchronization between different modules or systems.
  Configuration Issues: The configuration settings for serial number management or inspection lot processing may not be set up correctly.
  
  Solutions:
  
  Verify Serial Number: Check if the serial number exists in the system. You can do this by navigating to the relevant transaction (e.g., IQ01 for creating serial numbers or IQ02 for changing them) and searching for the serial number.
  Create Serial Number: If the serial number does not exist, create it using the appropriate transaction code (e.g., IQ01).
  Check Inspection Lot Status: Ensure that the inspection lot is in a status that allows for the processing of serial numbers. You can check the status in transaction QA03 (Display Inspection Lot).
  Correct Data Entry: Double-check the entry of the serial number in the inspection lot to ensure there are no typographical errors.
  Review Configuration: Consult with your SAP configuration team to ensure that the settings for serial number management and inspection lot processing are correctly configured.
  Consult Documentation: Refer to SAP documentation or help resources for additional guidance on handling inspection lots and serial numbers.
  
  Related Information:
  
  Transaction Codes:
  
  QA03: Display Inspection Lot
  IQ01: Create Serial Number
  IQ02: Change Serial Number
  IQ03: Display Serial Number
  
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  User Roles and Authorizations: Ensure that the user has the necessary authorizations to view and manage inspection lots and serial numbers.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with your SAP support team or a technical consultant for further assistance.