How To Fix SLDAP_ICM003 - Protocol incompatibility between ABAP (&1) and ICM LDAP plug-in (&2)

SAP Error Message - Details

• Message type: E = Error

• Message class: SLDAP_ICM - ICM LDAP Plugin: Messages

• Message number: 003

• Message text: Protocol incompatibility between ABAP (&1) and ICM LDAP plug-in (&2)

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message SLDAP_ICM003 - Protocol incompatibility between ABAP (&1) and ICM LDAP plug-in (&2) ?

  The SAP error message SLDAP_ICM003 indicates a protocol incompatibility between the ABAP system and the Internet Communication Manager (ICM) LDAP plug-in. This typically occurs when there is a mismatch in the versions or configurations of the ABAP system and the LDAP plug-in being used.
  Cause:
  
  Version Mismatch: The ABAP system and the LDAP plug-in may be running different versions that do not support the same protocol features.
  Configuration Issues: Incorrect configuration settings in either the ABAP system or the LDAP plug-in can lead to incompatibility.
  Unsupported Protocols: The LDAP plug-in may not support the protocol version that the ABAP system is trying to use.
  
  Solution:
  
  Check Versions: Ensure that both the ABAP system and the LDAP plug-in are compatible. You may need to upgrade one or both components to ensure they are on compatible versions.
  Review Configuration: 
  
  Check the configuration settings in the ABAP system related to LDAP connections. This includes settings in transaction SICF for ICM and any LDAP-specific settings.
  Verify the settings in the LDAP plug-in configuration to ensure they match the expected settings for the ABAP system.
  
  
  Update SAP Notes: Look for any relevant SAP Notes that address this specific error. SAP frequently releases updates and patches that may resolve compatibility issues.
  Test Connection: Use tools like LDAP Browser or similar to test the connection to the LDAP server independently of the ABAP system to ensure that the LDAP server is functioning correctly.
  Consult Documentation: Review the official SAP documentation for both the ABAP system and the LDAP plug-in for any specific compatibility requirements or configuration guidelines.
  
  Related Information:
  
  SAP Notes: Search for SAP Notes related to LDAP and ICM for any known issues or fixes.
  ICM Configuration: Familiarize yourself with the ICM configuration parameters in the SAP system, especially those related to LDAP.
  Logs and Traces: Check the system logs (transaction SM21) and traces (transaction ST22 or SLG1) for additional error messages that may provide more context about the issue.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to identify and resolve the protocol incompatibility issue between the ABAP system and the ICM LDAP plug-in.