How To Fix OA845 - Client is not known

SAP Error Message - Details

• Message type: E = Error

• Message class: OA - SAP ArchiveLink: Messages for SAP ArchiveLink

• Message number: 845

• Message text: Client is not known

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 OA845 - Client is not known ?

  The SAP error message OA845, which states "Client is not known," typically occurs when the system is unable to recognize the client specified in the transaction or configuration. This can happen for several reasons, and here are some common causes, solutions, and related information:
  Causes:
  
  Incorrect Client Number: The client number entered may be incorrect or does not exist in the system.
  Client Not Configured: The client may not be properly configured in the SAP system.
  Authorization Issues: The user may not have the necessary authorizations to access the specified client.
  System Configuration: There may be issues with the system configuration or the client settings in the SAP system.
  Transport Issues: If the client was recently created or transported, there may be issues with the transport process.
  
  Solutions:
  
  Verify Client Number: Check the client number you are trying to access. Ensure it is correct and exists in the system.
  Check Client Configuration: Use transaction code SCC4 to verify if the client is configured correctly. Ensure that the client is set to "Active."
  User Authorizations: Ensure that the user has the necessary authorizations to access the client. You can check this using transaction SU01 to review user roles and profiles.
  System Logs: Check the system logs for any additional error messages or information that might provide more context about the issue. Use transaction SM21 to view the system log.
  Transport Management: If the client was recently created or modified, ensure that all necessary transports have been successfully imported. Use transaction STMS to check the transport logs.
  Contact Basis Team: If the issue persists, it may be necessary to contact your SAP Basis team for further investigation, especially if it involves system configuration or client setup.
  
  Related Information:
  
  Transaction Codes:
  
  SCC4: Client Administration
  SU01: User Maintenance
  SM21: System Log
  STMS: Transport Management System
  
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. You can search for relevant notes in the SAP Support Portal.
  Documentation: Review SAP documentation for client management and configuration to ensure best practices are being followed.
  
  By following these steps, you should be able to identify and resolve the issue related to the OA845 error message in SAP.