How To Fix SO839 - RFC-LDAP interface has received invalid key

SAP Error Message - Details

• Message type: E = Error

• Message class: SO - SAPoffice: message texts

• Message number: 839

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

What causes this issue?

The RFC-LDAP interface cannot identify the RFC client using the
specified key.

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?

Logon to the LDAP service again. If the error occurs a second time, a
fault may exist in the RFC connection.

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 SO839 - RFC-LDAP interface has received invalid key ?

  The SAP error message SO839, which states "RFC-LDAP interface has received invalid key," typically occurs when there is an issue with the configuration of the LDAP (Lightweight Directory Access Protocol) settings in the SAP system. This error can arise due to various reasons, including incorrect parameters, invalid keys, or issues with the connection to the LDAP server.
  Causes:
  
  Invalid Key: The key being used to access the LDAP directory may be incorrect or not properly configured.
  
  Configuration Issues: The RFC destination or LDAP settings in the SAP system may not be set up correctly.
  Network Issues: There may be connectivity problems between the SAP system and the LDAP server.
  User Permissions: The user account being used to connect to the LDAP server may not have the necessary permissions.
  LDAP Server Issues: The LDAP server itself may be down or experiencing issues.
  
  Solutions:
  
  
  Check RFC Destination:
  
  Go to transaction SM59 in SAP and check the RFC destination that is configured