How To Fix CNV780 - Table &1 was not dropped; the update phase must not start

CNV780 - Overview

• Message type: E = Error

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

• Message number: 780

• Message text: Table &1 was not dropped; the update phase must not start

Self-Explanatory Message

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CNV780 - Details

• The SAP error message "CNV780 Table &1 was not dropped; the update phase must not start" typically occurs during a system conversion or upgrade process, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error indicates that a specific database table (denoted by &1) was expected to be dropped as part of the conversion process, but it was not successfully removed. As a result, the update phase cannot proceed.
  Causes:
  
  Table Dependencies: The table may have dependencies or relationships with other tables that prevent it from being dropped.
  Database Locks: There may be locks on the table that prevent it from being altered or dropped.
  Custom Modifications: If the table has been customized or modified in a way that conflicts with the upgrade process, it may not be dropped as expected.
  Incorrect Configuration: The configuration settings for the migration or upgrade process may not be set correctly, leading to issues with table