In order to ensure your data is up-to-date in Dryrun, you will need to refresh your data when you open a Forecast.
Click on Refresh Data at the top right of your Forecast. This will refresh all of your integrations in the Forecast at one time.
Clicking on the i icon will give you the date and time of your last refresh. (Click anywhere else on the screen to close the info pop-up.)
Refreshing Your Data in Individual Scenarios
If you want to only refresh a specific integration in a single Scenario, click on the icon for the data you want to refresh (ie. the Xero logo in the Deals Scenario and click on Save & Refresh.