https://grafioschtrader.github.io/gt-user-manual/en/watchlistinstrument/externaldata/historyquote/pricedata/archive/index.htmlWhen a security’s data provider changes, or when a split triggers a complete reload of the historical price data, parts of the older history may no longer be available from the new provider. The archive preserves the displaced prices so that they can be merged back into the current price series. Existing price data is therefore not lost, even when the new provider only supplies a limited history. When the archive is filled The archive is filled automatically only. There is intentionally no manual archive action. In two situations the current prices are first archived and the table is then rebuilt from the new data provider.Hugoen