How To Fix SO840 - RFC-LDAP interface has received invalid parameter

SAP Error Message - Details

• Message type: E = Error

• Message class: SO - SAPoffice: message texts

• Message number: 840

• Message text: RFC-LDAP interface has received invalid parameter

What causes this issue?

An invalid parameter was transferred to the RFC-LDAP interface or a
function which has not been implemented was called.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

The only solution to this problem is a program correction.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message SO840 - RFC-LDAP interface has received invalid parameter ?

  The SAP error message SO840, which indicates that the RFC-LDAP interface has received an invalid parameter, typically arises when there is a misconfiguration in the LDAP settings or when the parameters being passed to the LDAP interface are incorrect or not recognized.
  Causes:
  
  Invalid LDAP Configuration: The LDAP server settings in the SAP system may be incorrect, such as the server address, port number, or base DN.
  Incorrect Parameters: The parameters being sent to the LDAP interface may not conform to the expected format or may be missing required fields.
  Network Issues: There may be network connectivity issues between the SAP system and the LDAP server.
  Authorization Issues: The user credentials used to connect to the LDAP server may not have the necessary permissions.
  Version Mismatch: There may be compatibility issues between the SAP system and the LDAP server version.
  
  Solutions:
  
  
  Check LDAP Configuration:
  
  Go to transaction SO20 in SAP to review the LDAP settings.
  Ensure that the LDAP server address, port, and base DN are correctly configured.
  Verify that the LDAP server is reachable from the SAP system.
  
  
  
  Validate Parameters:
  
  Review the parameters being passed to the LDAP interface. Ensure they are in the correct format and contain all required information.
  Check for any typos or incorrect values in the configuration.
  
  
  
  Test Connectivity:
  
  Use tools like ping or telnet to check if the SAP system can reach the LDAP server.
  If there are network issues, work with your network team to resolve them.
  
  
  
  Check User Credentials:
  
  Verify that the user credentials used for the LDAP connection are correct and have the necessary permissions to access the LDAP server.
  
  
  
  Review Logs:
  
  Check the SAP system logs (transaction SM21) and the LDAP server logs for any additional error messages that may provide more context on the issue.
  
  
  
  Update SAP Notes:
  
  Check for any relevant SAP Notes that may address known issues with the RFC-LDAP interface. Apply any necessary patches or updates.
  
  
  
  Consult Documentation:
  
  Review the SAP documentation for the RFC-LDAP interface to ensure that all configurations are set according to the guidelines.
  
  
  
  Related Information:
  
  SAP Notes: Search for SAP Notes related to LDAP integration and RFC issues. These notes often contain troubleshooting steps and solutions for known problems.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  RFC and LDAP Documentation: Familiarize yourself with the RFC and LDAP integration documentation provided by SAP for best practices and configuration guidelines.
  
  If the issue persists after following these steps, consider reaching out to SAP support for further assistance.