How To Fix Q2420 - Unknown error &

SAP Error Message - Details

• Message type: E = Error

• Message class: Q2 - Messages for Development Classes SDBO and SDBA

• Message number: 420

• Message text: Unknown error &

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.

Smart SAP Assistant

• What is the cause and solution for SAP error message Q2420 - Unknown error & ?

  The SAP error message Q2420, which states "Unknown error &," typically indicates that there is an issue within the Quality Management (QM) module of SAP, but the error message itself does not provide specific details about the underlying cause. This can make troubleshooting a bit challenging. Here are some common causes, potential solutions, and related information that may help you resolve this error:
  Common Causes:
  
  Configuration Issues: There may be a misconfiguration in the Quality Management settings or master data.
  Data Inconsistencies: Inconsistent or incomplete data in the quality inspection lot or related documents can trigger this error.
  Authorization Problems: The user may not have the necessary authorizations to perform the action that triggered the error.
  System Bugs: There may be a bug in the SAP system or a specific transaction that is causing the error.
  Custom Code: If there are custom enhancements or modifications in the system, they might be causing unexpected behavior.
  
  Potential Solutions:
  
  Check Configuration: Review the configuration settings in the Quality Management module to ensure everything is set up correctly.
  Validate Data: Check the quality inspection lot and related documents for any inconsistencies or missing information.
  User Authorizations: Ensure that the user has the necessary authorizations to perform the action that resulted in the error.
  Review Logs: Check the system logs (transaction SLG1) for any additional error messages or details that might provide more context.
  Debugging: If you have access to debugging tools, you can try to debug the transaction to identify where the error is occurring.
  SAP Notes: Search the SAP Support Portal for any relevant SAP Notes that might address this specific error or provide patches.
  Contact SAP Support: If the issue persists and you cannot find a resolution, consider reaching out to SAP Support for assistance.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes in the QM module, such as QA32 (Change Inspection Lot) or QA11 (Record Results).
  Documentation: Review SAP documentation related to Quality Management for best practices and troubleshooting tips.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed.
  
  Conclusion:
  Since the error message Q2420 is quite generic, it is essential to gather more context about when and how the error occurs. By systematically checking the configuration, data, and user permissions, you can often identify the root cause and implement a solution. If necessary, do not hesitate to seek help from SAP Support or your internal SAP team.