How To Fix CNV809 - Table & is a cluster (pool) table; &2 is saved

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV - Conversion: Messages for Conversion Services (CNCC)

• Message number: 809

• Message text: Table & is a cluster (pool) table; &2 is saved

What causes this issue?

Table &V1& is a cluster (pool) table. During the backup, the complete
cluster (pool) &V2& is saved.

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?

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV809 - Table & is a cluster (pool) table; &2 is saved ?

  The SAP error message CNV809 indicates that a specific table (denoted by &) is a cluster (or pool) table, and that another table (denoted by &2) has been saved. This error typically arises during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or other data transfer tools.
  Cause:
  
  Cluster Tables: In SAP, cluster tables are special types of tables that store data in a compressed format. They are used to group related data together, which can lead to performance benefits but also complicates data handling during migrations.
  Data Migration Restrictions: When migrating data, certain operations may not be allowed on cluster tables. The error suggests that the system is trying to perform an operation that is not supported for cluster tables.
  
  Solution:
  
  Check Data Migration Strategy: Review the data migration strategy to ensure that you are not trying to directly manipulate cluster tables. Instead, you may need to extract the data from the cluster table into a transparent table format before performing any operations.
  Use Appropriate Tools: Utilize SAP's recommended tools for data migration, such as the SAP S/4HANA Migration Cockpit, which is designed to handle these types of scenarios more effectively.
  Consult Documentation: Refer to the SAP documentation for the specific migration tool you are using. There may be guidelines or best practices for handling cluster tables.
  Data Mapping: Ensure that the data mapping is correctly set up to handle the structure of cluster tables. You may need to create a mapping that extracts the necessary data from the cluster table into a format that can be processed.
  Seek Expert Help: If the issue persists, consider consulting with an SAP expert or your SAP support team for assistance in resolving the error.
  
  Related Information:
  
  Cluster Tables: These are tables that store data in a compressed format and are typically used for performance optimization. They can complicate data extraction and migration processes.
  Data Migration Tools: Familiarize yourself with SAP's data migration tools, such as the SAP S/4HANA Migration Cockpit, which provides a structured approach to migrating data while considering the complexities of different table types.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance on handling cluster tables during data migration.
  
  By following these steps, you should be able to address the CNV809 error and successfully manage the data migration process involving cluster tables.