Test APIs with PostmanMonitor collectionsTest data

Test data for monitors

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By default, a monitor runs its collection once per monitor run with the same data. You can provide test data to run the collection multiple times within a single run, each time with a different set of values. This enables you to validate multiple scenarios and inputs in one monitor run.

Data files

Upload a CSV or JSON file when configuring a monitor. Each row in the file becomes one iteration in the run. Data files are limited to 1 MB and 50 rows, making them a good option for a small, fixed set of values that you don’t need to share across other Postman workflows.

Learn more at Use a data file with a monitor.

Datasets

Use a Postman dataset and view as your test data source. Datasets are queryable and shared across workflows, so the same data can power collection runs, mock servers, and monitors without duplication.

Learn more at Use a dataset with a monitor.