How To Fix CNV20551666 - &1 is cluster table in cluster &2. Cluster &2 will be dropped itself.

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV20551 - message for package 20551 (company code delete)

• Message number: 666

• Message text: &1 is cluster table in cluster &2. Cluster &2 will be dropped itself.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV20551666 - &1 is cluster table in cluster &2. Cluster &2 will be dropped itself. ?

  The SAP error message CNV20551666 indicates that there is an issue related to a cluster table in the context of data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error typically arises during the conversion of data from a legacy system to an SAP S/4HANA system, where the system is trying to handle cluster tables.
  Cause:
  
  Cluster Tables: The error suggests that the system has identified a cluster table (denoted as &1) that is part of another cluster (denoted as &2). In SAP, cluster tables are used to store related data in a single table structure, which can complicate data migration.
  Data Migration Issues: The error may occur if the migration process attempts to drop or modify a cluster table that is still in use or if there are inconsistencies in the data model.
  Incompatibility: The cluster table may not be compatible with the target structure in the S/4HANA system, leading to the system's inability to process it correctly.
  
  Solution:
  
  Review Data Model: Check the data model and ensure that the cluster tables are correctly defined and that their relationships are properly maintained.
  Data Migration Strategy: Adjust your data migration strategy to handle cluster tables appropriately. This may involve:
  
  Extracting data from cluster tables into transparent tables before migration.
  Ensuring that all necessary data is migrated before attempting to drop any tables.
  
  
  Consult Documentation: Refer to SAP documentation or notes related to data migration and cluster tables for specific guidance on handling these scenarios.
  Use Migration Tools: Utilize SAP's migration tools, such as the SAP S/4HANA Migration Cockpit, which may provide specific options or settings to handle cluster tables.
  Testing: Conduct thorough testing in a development or sandbox environment to identify and resolve issues before performing the migration in production.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional context on handling cluster tables during migration.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have implemented.
  SAP Help Portal: Utilize the SAP Help Portal for detailed documentation on data migration and handling of cluster tables in S/4HANA.
  
  If the issue persists after following these steps, it may be beneficial to consult with SAP support or a qualified SAP consultant who specializes in data migration and system conversions.