When you change the metadata of an external data source, the data object metadata in the Model Repository is not updated by default. Use the Synchronize option to synchronize the data object metadata to the data source metadata.
In the Developer tool, after you use the Synchronize option, when you open a profile or scorecard that uses the data object, an asterisk appears alongside the profile name or scorecard name in the editor. The asterisk indicates that the data object metadata has changed for the profile or scorecard. Open and save the profile or scorecard to update the profile definition in the Model Repository. Note that no visible changes appear in the Analyst tool when you open the profile or scorecard after you synchronize the data object for the profile or scorecard. You can use the Synchronize option for column profiles, enterprise discovery profiles, and scorecards. The external data source can be a relational data source or flat file data source.