Various technologies and techniques are disclosed for persisting instance-level report customizations. Input is received from a user to run an original report. An original query associated with the original report is executed against a data store. The original report is displayed to the user. At least one instance-level customization is received from the user to customize an instance of the original report. The instance-level customizations that the user makes to the customized report are tracked in a manner that allows a history of changes from the original report to the customized report to be determined. The customized report is generated in subsequent executions of the report. The instance-level changes the user made to the report can be audited to allow users to see the changes made to the original report.
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