Error
Error Code:
4195
SAP S/4HANA Error 4195: Duplicate LDAP Mapping
Description
This error indicates an attempt to create a role to LDAP group mapping that already exists within the SAP S/4HANA system. It typically occurs when an administrator tries to associate an SAP role with an LDAP group using a configuration that is already active or partially configured.
Error Message
ERR_LDAP_MAPPING_ALREADY_EXISTS
Known Causes
3 known causesAttempted Duplicate Creation
An administrator tried to create a mapping using the exact same SAP role and LDAP group combination that is already present in the system.
Incomplete Prior Setup
A previous attempt to create the mapping might have failed or been interrupted, leaving a partial record that the system now identifies as an existing entry.
Misunderstood Existing Mapping
The user might be unaware of an existing mapping or misinterpret a similar mapping as a new one, leading to an attempt to re-create it.
Solutions
3 solutions available1. Identify and Remove Duplicate LDAP User Mappings medium
Locate and delete redundant entries in the LDAP mapping table within SAP S/4HANA.
1
Access the SAP S/4HANA system and navigate to transaction SU01 (User Maintenance).
2
Go to the 'User' menu and select 'Display' or 'Change' for the relevant user. Then navigate to the 'Logon Data' tab.
3
Under the 'Logon Method' section, check for multiple entries pointing to the same LDAP server or configuration. Look for duplicate mappings.
4
If duplicate mappings are found, delete the redundant entry. Be cautious to only remove the duplicate and not the primary or correct mapping.
5
Alternatively, you can use ABAP report RSUSR002 to check for duplicate user assignments or mappings. Execute RSUSR002 and specify relevant selection criteria to identify potential issues.
CALL TRANSACTION 'RSUSR002'.6
For a more direct database approach (use with extreme caution and after consulting SAP Basis/Security), you can query the relevant SAP tables. The table storing user-LDAP mappings is typically `USRACL` or similar. Consult SAP Notes for the exact table names for your S/4HANA version.
SELECT * FROM USRACLSYNCH WHERE USERID = 'YOUR_USER_ID' AND LDAP_SERVER = 'YOUR_LDAP_SERVER';
-- Identify duplicate entries based on USERID and LDAP_SERVER.
-- Use DELETE statements with extreme caution, preferably after backup and verification.7
Save the changes for the user in SU01 or execute the necessary DELETE statements in the database.
2. Verify and Correct LDAP Server Configuration in SAP medium
Ensure that the LDAP server configuration within SAP S/4HANA is unique and correctly defined.
1
Navigate to transaction `LDAP` in SAP S/4HANA.
2
Review the list of configured LDAP servers. Look for entries that are identical or have overlapping configurations (e.g., same server name, port, or base DN).
3
If duplicate LDAP server definitions are found, either delete the redundant entry or modify it to be distinct. Ensure that the primary LDAP server configuration is retained.
4
Save the changes to the LDAP server configuration.
5
After correcting the LDAP server configuration, re-test the user logon or synchronization process that triggered the error.
3. Re-synchronize User Mappings with LDAP Directory medium
Force a re-synchronization of user mappings to resolve inconsistencies between SAP and the LDAP directory.
1
Access SAP S/4HANA and navigate to transaction `LDAP`.
2
Select the relevant LDAP server configuration.
3
Under the 'Synchronization' or 'User Mapping' section, look for an option to initiate a manual synchronization or refresh. The exact wording may vary based on your S/4HANA version and installed components.
4
Execute the synchronization process. This may involve a full sync or a delta sync, depending on the available options.
5
Monitor the synchronization process for any errors. If the duplicate mapping error persists, it indicates a deeper configuration issue that needs to be addressed by the previous solutions.