How To Fix CNV20551649 - &1 in list of tables to be dropped or whose contents is to be deleted

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 649

• Message text: &1 in list of tables to be dropped or whose contents is to be deleted

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV20551649 - &1 in list of tables to be dropped or whose contents is to be deleted ?

  The SAP error message CNV20551649 typically relates to issues encountered during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error indicates that there are tables that are either marked for deletion or are supposed to be dropped, but there are issues preventing this from happening.
  Cause:
  
  Data Integrity Issues: The tables may contain data that is still referenced by other tables, leading to integrity constraints that prevent deletion.
  Configuration Issues: There may be configuration settings that are preventing the deletion of certain tables or their contents.
  Authorization Issues: The user executing the migration may not have the necessary permissions to drop or delete the specified tables.
  Technical Errors: There could be underlying technical issues, such as database locks or corruption, that are preventing the operation.
  
  Solution:
  
  Check Dependencies: Review the database schema to identify any foreign key constraints or dependencies that may be preventing the deletion of the tables. You may need to drop or modify these constraints first.
  Review Configuration: Ensure that the migration settings are correctly configured and that the tables are indeed intended to be dropped or cleared.
  User Permissions: Verify that the user executing the migration has the necessary permissions to perform the drop or delete operations on the specified tables.
  Database Locks: Check for any locks on the database that may be preventing the operation. You may need to release these locks or wait for them to be cleared.
  Consult Logs: Look at the detailed logs generated during the migration process for more specific error messages that can provide additional context on the failure.
  Manual Intervention: If necessary, you may need to manually delete the contents of the tables or drop them using SQL commands, but be cautious and ensure that this does not violate data integrity.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide guidance on similar issues.
  Migration Documentation: Review the official SAP documentation related to the migration process you are undertaking, as it may contain specific instructions or best practices.
  Community Forums: Engage with SAP community forums or support channels where other users may have encountered and resolved similar issues.
  
  If the problem persists after trying the above solutions, it may be beneficial to reach out to SAP support for further assistance.