How To Fix RSEC400 - User name or password incorrect

SAP Error Message - Details

• Message type: E = Error

• Message class: RSEC -

• Message number: 400

• Message text: User name or password incorrect

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 RSEC400 - User name or password incorrect ?

  The SAP error message RSEC400, which states "User name or password incorrect," typically occurs when a user attempts to log into the SAP system with incorrect credentials. Here are the causes, solutions, and related information for this error:
  Causes:
  
  Incorrect Username or Password: The most common cause is that the user has entered an incorrect username or password.
  Account 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.
  User Not Authorized: The user may not have the necessary authorizations to access the system.
  System Configuration Issues: There may be issues with the system configuration, such as incorrect settings in the user management or authentication methods.
  Network Issues: Connectivity problems between the client and the SAP server can also lead to authentication failures.
  
  Solutions:
  
  Verify Credentials: Double-check the username and password for accuracy. Ensure that the Caps Lock key is not inadvertently activated.
  Reset Password: If the password is forgotten or expired, the user should contact their system administrator to reset it.
  Unlock Account: If the account is locked, the administrator can unlock it using transaction code SU01 (User Maintenance).
  Check Authorizations: Ensure that the user has the necessary authorizations to log in. This can be checked by the system administrator.
  Review System Logs: Check the system logs (transaction SM21) for any additional error messages that may provide more context about the login failure.
  Network Troubleshooting: Ensure that there are no network issues preventing the connection to the SAP server.
  
  Related Information:
  
  Transaction Codes:
  
  SU01: User Maintenance - to manage user accounts.
  SU10: Mass User Maintenance - to manage multiple user accounts.
  SM21: System Log - to view system logs for errors.
  
  
  SAP Notes: Check SAP Notes for any known issues related to user authentication and login problems.
  Security Policies: Review the organization's security policies regarding password complexity, expiration, and account lockout settings.
  
  If the problem persists after trying the above solutions, it may be necessary to involve SAP support or your organization's IT department for further investigation.