To sync changes done in the external data source with NocoDB, Open [Data Sources](010.data-source-overview.md#accessing-data-sources) tab in the Base Settings, select the data source you wish to sync metadata for, and follow the steps below:
1. Click on the `Meta Sync` tab
2. Click on the `Reload` button to refresh Sync state (Optional)
3. Any changes to the metadata identified will be listed in the `Sync State` column
4. Click on `Sync Now` button to sync the metadata changes
5. Once the sync is complete, you can see the updated state in the `Sync State` column