When you first set up your Zap trigger, Zapier will attempt to find some sample data from your trigger app to use in the Zap. For example, if your trigger brings in data from a new Google Sheets spreadsheet row, Zapier will pull in a sample row. The sample row can then be used as test data in an action step later in the Zap.
As you continue to set up the rest of your Zap, you may realize that you need different sample data from your trigger to complete the rest of your Zap, or to create a more relevant test record later on. To change the sample data: