How To Fix CNV20551668 - &1 - cluster tab. can only be deleted in normal way - or drop cluster &2?

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 668

• Message text: &1 - cluster tab. can only be deleted in normal way - or drop cluster &2?

What causes this issue?

Cluster table &V1& cannot be dropped.
However the associated cluster &V2& could be dropped.

System Response

If cluster table &V1& remains in the list, its table contents will be
deleted by conventional means, which might be very time-consuming.

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 CNV20551668 - &1 - cluster tab. can only be deleted in normal way - or drop cluster &2? ?

  The SAP error message CNV20551668 typically occurs in the context of data migration or conversion processes, particularly when dealing with cluster tables. This error indicates that a cluster table cannot be deleted in the way attempted, and it suggests that the deletion must be performed in a "normal way" or that the cluster itself must be dropped.
  Cause:
  
  Cluster Table Restrictions: Cluster tables in SAP are special types of tables that store data in a compressed format. They have specific rules regarding how they can be manipulated, including deletion.
  Data Integrity: The system may prevent the deletion of cluster tables to maintain data integrity and ensure that related data is not lost inadvertently.
  Incorrect Deletion Method: The method used to delete the cluster table may not be appropriate. For example, trying to delete it directly through a transaction that does not support such operations.
  
  Solution:
  
  
  Use the Correct Deletion Method:
  
  If you need to delete a cluster table, you should do so using the appropriate transaction or program that allows for the deletion of cluster tables. This often involves using the Data Dictionary (SE11) or specific migration tools.
  Ensure that you are following the correct procedure for deleting cluster tables as outlined in SAP documentation.
  
  
  
  Drop the Cluster:
  
  If the error message suggests dropping the cluster, you may need to use the appropriate SQL command or transaction to drop the entire cluster. This is a more drastic measure and should be done with caution, as it will remove all data associated with that cluster.
  
  
  
  Check for Dependencies:
  
  Before attempting to delete or drop a cluster table, check for any dependencies or relationships with other tables. Ensure that no other processes or applications are relying on the data in the cluster table.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to the specific cluster table you are working with. There may be specific guidelines or considerations for that table.
  
  
  
  Backup Data:
  
  Always ensure that you have a backup of any important data before performing deletion operations, especially with cluster tables, as this can lead to data loss.
  
  
  
  Related Information:
  
  Cluster Tables: Understand the structure and purpose of cluster tables in SAP. They are used to store related data in a compressed format, which can improve performance but also complicates data management.
  SAP Notes: Check for any relevant SAP Notes that may provide additional context or solutions for this error message.
  Transaction Codes: Familiarize yourself with transaction codes like SE11 (Data Dictionary) and SE14 (Database Utility) that may be useful in managing database objects.
  
  If the issue persists after following these steps, consider reaching out to SAP support or consulting with an SAP expert for further assistance.