Test Data Generation
After you have parameterized your tests to use Data Parameters instead of hard-coded values, you either load data from CSV files — or use this API to make BlazeMeter generate test data in bulk.
Synthetic test data generation is very useful when you want to test thousands of combinations of non-arbitrary values: For example, names of international persons and places, plausible international addresses, strings and numbers generated according to custom constraints, fake credit card numbers with valid checksums, random valid dates and times within custom constraints, and so on.