How To Fix RSEC402 - Logon failed

SAP Error Message - Details

• Message type: E = Error

• Message class: RSEC -

• Message number: 402

• Message text: Logon failed

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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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 RSEC402 - Logon failed ?

  The SAP error message RSEC402, which states "Logon failed," typically occurs when there are issues related to user authentication or authorization in the SAP system. Here are some common causes, solutions, and related information for this error:
  Causes:
  
  Incorrect Credentials: The user may be entering an incorrect username or password.
  User Lockout: The user account may be locked due to multiple failed login attempts.
  Expired Password: The user's password may have expired and needs to be reset.
  Authorization Issues: The user may not have the necessary authorizations to access the system or specific transactions.
  Profile Issues: The user profile may not be correctly configured, or the user may not be assigned to the correct roles.
  Network Issues: There may be network connectivity problems preventing the user from reaching the SAP server.
  System Configuration: There may be issues with the SAP system configuration, such as incorrect settings in the security parameters.
  
  Solutions:
  
  Verify Credentials: Ensure that the username and password are entered correctly. Check for case sensitivity.
  Unlock User Account: If the account is locked, an administrator can unlock it using transaction code SU01 (User Maintenance).
  Reset Password: If the password has expired, the user can reset it through the password reset process or an administrator can do it via SU01.
  Check Authorizations: Ensure that the user has the necessary authorizations to log in and access the required transactions. This can be checked using transaction SU53 (Authorization Check).
  Review User Profile: Verify that the user is assigned to the correct roles and profiles that grant access to the required functionalities.
  Check Network Connectivity: Ensure that there are no network issues preventing access to the SAP system.
  Review System Configuration: Check the security settings in the SAP system to ensure they are correctly configured. This may involve reviewing parameters in transaction RZ10 or RZ11.
  
  Related Information:
  
  Transaction Codes:
  
  SU01: User Maintenance
  SU53: Authorization Check
  RZ10/RZ11: Profile and Parameter Maintenance
  
  
  SAP Notes: Check SAP Notes for any known issues or patches related to the RSEC402 error.
  System Logs: Review system logs (transaction SM21) for any additional error messages or warnings that may provide more context about the logon failure.
  Security Audit: Conduct a security audit to ensure that user roles and authorizations are properly managed and that there are no security vulnerabilities.
  
  If the issue persists after trying the above solutions, it may be necessary to consult with your SAP Basis team or SAP support for further assistance.