How To Fix IUUC_MAIN178 - New Sequence Number from Clone lower than existing one for table &1

SAP Error Message - Details

• Message type: E = Error

• Message class: IUUC_MAIN - IUUC: Main Message class

• Message number: 178

• Message text: New Sequence Number from Clone lower than existing one for table &1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message IUUC_MAIN178 - New Sequence Number from Clone lower than existing one for table &1 ?

  The SAP error message IUUC_MAIN178, which states "New Sequence Number from Clone lower than existing one for table &1," typically occurs in the context of SAP Landscape Transformation (SLT) replication. This error indicates that there is a discrepancy in the sequence numbers between the source and the target systems during the data replication process.
  Cause:
  
  Sequence Number Mismatch: The error arises when the sequence number of the data being replicated from the source system is lower than the existing sequence number in the target system for the specified table. This can happen if:
  
  Data was manually inserted or modified in the target system, leading to a higher sequence number.
  There was a failure or interruption in the replication process, causing the sequence numbers to become out of sync.
  The source data was modified after the initial replication, and the new changes are being attempted to be replicated with a lower sequence number.
  
  
  
  Solution:
  To resolve this issue, you can follow these steps:
  
  
  Check the Sequence Numbers: 
  
  Use transaction codes like SLT or DBACOCKPIT to check the sequence numbers in both the source and target systems.
  Identify the current sequence number in the target system for the affected table.
  
  
  
  Reinitialize the Replication:
  
  If the sequence numbers are out of sync, you may need to reinitialize the replication for the affected table. This can be done by:
  
  Stopping the replication for the table.
  Deleting the existing replication setup for that table.
  Reconfiguring the replication for the table, which will reset the sequence numbers.
  
  
  
  
  
  Data Consistency Check:
  
  Ensure that the data in the source and target systems is consistent. If there are discrepancies, you may need to manually synchronize the data.
  
  
  
  Adjust the Configuration:
  
  Review the SLT configuration settings to ensure that they are correctly set up for your replication scenario. This includes checking the logging settings and ensuring that the replication is set to handle conflicts appropriately.
  
  
  
  Consult SAP Notes:
  
  Check for any relevant SAP Notes that may address this specific error or provide additional guidance on handling sequence number issues in SLT.
  
  
  
  Related Information:
  
  SLT Documentation: Review the official SAP documentation on Landscape Transformation for detailed information on replication processes and error handling.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SLT, DBACOCKPIT, and SM37 (for monitoring jobs) to help diagnose and resolve issues.
  SAP Community: Engage with the SAP Community forums for insights and solutions shared by other users who may have encountered similar issues.
  
  By following these steps, you should be able to resolve the IUUC_MAIN178 error and ensure that your data replication process runs smoothly.