Message type: E = Error
Message class:  CNV_10020 - Message class for package 10020 
Message number: 073
Message text: Data was changed; save first
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The SAP error message CNV_10020073: Data was changed; save first typically occurs during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or other data migration tools. This error indicates that the system has detected changes in the data that need to be saved before proceeding with further actions.
Cause: Uncommitted Changes: The error usually arises when there are unsaved changes in the data that you are trying to process. This can happen if you have modified data in a session but have not saved those changes. Concurrent Modifications: If multiple users are working on the same data set, one user’s changes may conflict with another’s, leading to this error. Data Locking: The data you are trying to work with may be locked by another process or user, preventing you from saving your changes.
Solution: Save Changes: The most straightforward solution is to save any changes you have made before attempting to
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