How To Fix MEREP_01107 - Synchronization key &1 missing in replicaion DB

SAP Error Message - Details

• Message type: E = Error

• Message class: MEREP_01 - Runtime Messages for Synchronizers

• Message number: 107

• Message text: Synchronization key &1 missing in replicaion DB

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message MEREP_01107 - Synchronization key &1 missing in replicaion DB ?

  The SAP error message MEREP_01107 indicates that there is a missing synchronization key in the replication database. This error typically occurs in the context of SAP Landscape Transformation (SLT) or SAP Data Services when data is being replicated from a source system to a target system.
  Cause:
  The error can be caused by several factors, including:
  
  Missing Data: The synchronization key that is expected in the replication database is not present. This could be due to data not being replicated correctly or being deleted from the source system.
  Configuration Issues: There may be misconfigurations in the SLT settings or the replication setup that prevent the synchronization key from being created or recognized.
  Data Model Changes: Changes in the data model of the source system (like changes in table structure or key fields) that are not reflected in the replication setup.
  Replication Errors: Previous errors during the replication process that caused the synchronization key to not be created or updated.
  
  Solution:
  To resolve the MEREP_01107 error, you can follow these steps:
  
  
  Check the Source System: Verify that the data exists in the source system and that the synchronization key is present. You can do this by checking the relevant tables in the source system.
  
  
  Review SLT Configuration: Ensure that the SLT configuration is correct. Check the settings for the relevant tables and ensure that the synchronization keys are properly defined.
  
  
  Reinitialize Replication: If the issue persists, you may need to reinitialize the replication for the affected tables. This can be done by stopping the replication, deleting the existing replication setup, and then reconfiguring it.
  
  
  Check for Errors in Replication Logs: Look at the SLT replication logs for any errors or warnings that might provide more context on why the synchronization key is missing.
  
  
  Data Consistency Check: Perform a consistency check on the data in both the source and target systems to ensure that they are in sync.
  
  
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  
  
  Contact SAP Support: If you are unable to resolve the issue, consider reaching out to SAP Support for assistance, providing them with the error details and any relevant logs.
  
  
  Related Information:
  
  SAP SLT Documentation: Review the official SAP documentation for Landscape Transformation for detailed information on configuration and troubleshooting.
  SAP Community: Engage with the SAP Community forums where other users may have encountered similar issues and can provide insights or solutions.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as LTRC (for SLT configuration) and SLT monitoring tools to help diagnose and resolve replication issues.
  
  By following these steps, you should be able to identify the cause of the MEREP_01107 error and implement a solution to resolve it.