How To Fix LTR2_ES_CHECK206 - Rule assignment may be out of sync. A new assignment run is required

SAP Error Message - Details

• Message type: E = Error

• Message class: LTR2_ES_CHECK - LTR2 Checks on Embedded Specification

• Message number: 206

• Message text: Rule assignment may be out of sync. A new assignment run is required

What causes this issue?

The rule assignment set has been changed on &V1& at &V2&.
There was no assignment run executed in the meantime.
There is currently a mismatch between the settings of the rule
assignment set and the rule settings in the embedded specification.

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?

After you have fixed all errors reported in the rule check you must
execute a new assignment run.

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 LTR2_ES_CHECK206 - Rule assignment may be out of sync. A new assignment run is required ?

  The SAP error message LTR2_ES_CHECK206 indicates that there is a synchronization issue with the rule assignments in the SAP Landscape Transformation (SLT) replication setup. This typically occurs when there have been changes in the source or target systems that affect the data replication rules, and the system detects that the current assignments may not be in sync with the expected configuration.
  Cause:
  
  Changes in Source/Target Structure: If there have been changes in the source or target database structures (like adding or removing fields), the existing rule assignments may no longer be valid.
  Manual Changes: If manual changes were made to the replication settings or rules without properly updating the assignments.
  System Upgrades or Patches: Upgrading the SAP system or applying patches can sometimes lead to inconsistencies in rule assignments.
  Data Model Changes: Changes in the data model that affect how data is mapped or transformed during replication.
  
  Solution:
  To resolve the error, you need to perform a new assignment run to ensure that the rule assignments are synchronized. Here are the steps to do this:
  
  Access the SLT Configuration: Go to the SLT configuration transaction (usually LTRC).
  Check the Replication Settings: Review the current replication settings and rule assignments to identify any discrepancies.
  Perform a New Assignment Run:
  
  Navigate to the "Assignment" section in the SLT configuration.
  Execute the assignment run to refresh the rule assignments.
  
  
  Monitor the Process: After executing the assignment run, monitor the process to ensure that it completes successfully without errors.
  Test the Replication: Once the assignment run is complete, test the data replication to ensure that data is being replicated correctly.
  
  Related Information:
  
  SLT Documentation: Refer to the official SAP documentation for SLT for detailed information on configuration and troubleshooting.
  SAP Notes: Check for any relevant SAP Notes that may address specific issues related to this error message.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as LTRC (SLT Configuration), LTR2 (for rule assignments), and SLT Monitoring transactions for monitoring replication processes.
  Support: If the issue persists after following the above steps, consider reaching out to SAP support for further assistance.
  
  By following these steps, you should be able to resolve the LTR2_ES_CHECK206 error and ensure that your SLT replication setup is functioning correctly.