If you are going to direct your participant to another webpage and you are worried that their data may not be saved if they do this, there is a keyword you can use to be absolutely sure that the data is synced right before something happens. You can use the following line to sync the data before they go to the website:

*wait: data

However, for most surveys, you won't need to do that because GuidedTrack saves data automatically throughout the process of a person's survey completion.