How To Fix SMOIWS091 - RFC Logon data invalid (&1 &2 &3 &4)

SAP Error Message - Details

• Message type: E = Error

• Message class: SMOIWS -

• Message number: 091

• Message text: RFC Logon data invalid (&1 &2 &3 &4)

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SMOIWS091 - RFC Logon data invalid (&1 &2 &3 &4) ?

  The SAP error message SMOIWS091 with the description "RFC Logon data invalid (&1 &2 &3 &4)" typically indicates that there is an issue with the Remote Function Call (RFC) logon credentials or configuration when trying to connect to an SAP system. This error can occur in various scenarios, such as when using RFC connections in background jobs, during data transfers, or when accessing remote systems.
  Causes:
  
  Invalid Credentials: The username or password used for the RFC connection is incorrect.
  User Lock: The user account may be locked or disabled in the target SAP system.
  Expired Password: The password for the user account may have expired and needs to be reset.
  Incorrect RFC Destination Configuration: The RFC destination may not be configured correctly in the SAP system.
  Network Issues: There may be network connectivity issues preventing the connection to the target system.
  Authorization Issues: The user may not have the necessary authorizations to perform the requested operation.
  
  Solutions:
  
  
  Check Credentials:
  
  Verify that the username and password used for the RFC connection are correct.
  If necessary, reset the password for the user in the target SAP system.
  
  
  
  User Status:
  
  Check if the user account is locked or disabled. You can do this by logging into the target SAP system and checking the user status in transaction SU01.
  
  
  
  RFC Destination Configuration:
  
  Go to transaction SM59 and check the configuration of the RFC destination. Ensure that the connection parameters (such as the target system, client, and logon credentials) are correct.
  
  
  
  Test Connection:
  
  In transaction SM59, use the "Test Connection" feature to verify that the RFC destination can connect to the target system successfully.
  
  
  
  Check for Network Issues:
  
  Ensure that there are no network issues preventing the connection. You can use tools like ping or telnet to check connectivity to the target system.
  
  
  
  Authorization Check:
  
  Ensure that the user has the necessary authorizations to perform the requested operation. You can check this in transaction SU53 after attempting the operation.
  
  
  
  Review Logs:
  
  Check the system logs (transaction SM21) and the RFC trace (transaction SM58) for any additional error messages that may provide more context about the issue.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SM59: RFC Destinations
  SU01: User Maintenance
  SU53: Display Authorization Check
  SM21: System Log
  SM58: Asynchronous RFC Monitor
  
  
  
  SAP Notes: Check for any relevant SAP Notes that may address specific issues related to RFC connections or the error message in question.
  
  
  By following these steps, you should be able to identify and resolve the cause of the SMOIWS091 error message. If the issue persists, consider reaching out to your SAP Basis team or SAP support for further assistance.