How To Fix RA633 - Invalid logon or invalid user

SAP Error Message - Details

• Message type: E = Error

• Message class: RA - Monitoring structure dialog message

• Message number: 633

• Message text: Invalid logon or invalid user

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 RA633 - Invalid logon or invalid user ?

  The SAP error message RA633, which states "Invalid logon or invalid user," typically indicates that there is an issue with the user credentials being used to log into the SAP system. Here are some common causes, potential solutions, and related information for this error:
  Causes:
  
  Incorrect Username or Password: The most common cause is that the user is entering an incorrect username or password.
  User Lockout: The user account may be locked due to multiple failed login attempts.
  User Not Authorized: The user may not have the necessary authorizations to log into the system.
  Expired Password: The user's password may have expired and needs to be reset.
  User Profile Issues: The user profile may not be correctly set up in the SAP system.
  System Configuration: There may be issues with the system configuration or connection settings.
  
  Solutions:
  
  Verify Credentials: Ensure that the username and password are entered correctly. Check for case sensitivity and any accidental spaces.
  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 using the password reset functionality or by contacting an administrator.
  Check Authorizations: Ensure that the user has the necessary authorizations to access the SAP system. This can be checked by an administrator.
  Review User Profile: An administrator should review the user profile to ensure it is correctly configured.
  Check System Logs: Review system logs for any additional error messages or information that may provide insight into the issue.
  Contact Support: If the issue persists, it may be necessary to contact SAP support for further assistance.
  
  Related Information:
  
  Transaction Codes: 
  
  SU01: User Maintenance
  SU10: Mass User Maintenance
  SM21: System Log
  SUIM: User Information System
  
  
  SAP Notes: Check SAP Notes for any known issues or patches related to user logon problems.
  Security Policies: Review the organization's security policies regarding password complexity and expiration to ensure compliance.
  
  By following these steps, you should be able to diagnose and resolve the RA633 error in SAP. If the problem continues, it may require deeper investigation by SAP Basis or security administrators.