The request you have created contains the email parameter. You can make ReadyAPI generate the parameter value automatically.
1. Create a data source
In the request editor, click the Generate Values button:
In the Create Data-Driven Loop dialog, select the request parameters that will be configured automatically:
ReadyAPI will automatically create a data source loop and add a property expansion that will refer to the email property in the Data Source test step:
Open the Data Source test step. As you see, ReadyAPI has automatically configured the data source to generate random email addresses as values of the email property:
2. Test the data source
To test your data source, you can use the data log:
Open the Data Log panel.
ReadyAPI will ask you how many rows you want to get. Just click OK.
The retrieved data will appear in the log.
On the next step of the tutorial, you will add an assertion to validate test results.