Changing Username and Password

You don't have to re-record a test case to change the username or password. Authentication credentials are configurable on the test case directly, either as a single fixed identity or as a dataset that provides different credentials per virtual user.

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Single Username and Password

For one fixed credential:

1. Right-click test case → Configure → User Identity
2. Select the authentication method and update the username and password fields
3. Click Finish

The new credentials take effect on the next replay.

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Multiple Users via Dataset

For different users on each replay (and for load tests where every virtual user needs its own identity):

1. Create a dataset with columns username and password (and any other per-user data your test needs)
2. Add rows with different credentials
3. Right-click test case → Configure → User Identity
4. Select the dataset and map columns to the username/password fields

See Basic/Form Authentication for the complete authentication configuration walkthrough and Datasets & Data-Driven Testing for dataset construction.