Test data for collection runs

By default, a collection run uses the same data on every iteration. You can provide test data to run the collection with different values on each iteration, for example to test multiple scenarios, inputs, or accounts in a single run.

• Run a collection with a data file — Start with a CSV or JSON you attach and run, for a small, fixed set of values you don’t need to reuse. Each row becomes one iteration.
• Use a dataset with a collection run — The next step when you need more: reusable or live data, SQL queries, connections to live databases, and no file size limits. Datasets also let you control how many iterations run and how they get their data.