# Overriding parameters

> Parameter override options in Test Manager: how to customize test case parameters within a test set for specific versions during execution.

Customize your testing process by overriding parameters for test cases within a test set. You can override parameters for specific versions of a test case, depending on which version you choose when executing the override action.

## Considerations

* A parameter that has been overridden and later removed will still appear in the **Override parameters** window, allowing you to decide when to remove it.
* If a parameter name is changed in the automation project where it originated, Test Manager also updates the parameter name within the test set.
* Cloned test sets maintain the original parameter values during the duplication process.

## Steps

1. Go to **Test Sets** and open a test set.
2. Go to the **Test Cases** tab.
3. Select the test cases you wish to run with different parameter values.
4. Select **Override parameters**. The **Override parameters** window opens, listing all parameters from the selected test cases that were manually created in Test Manager or imported from the selected automation for a test case.

    The **Override parameters** window displays both manually created Test Manager parameters and Studio arguments from the linked automation. If a Studio argument and a manually created Test Manager parameter share the same name and data type, the Test Manager parameter value automatically overrides the Studio value. You can also manually override any parameter by selecting **Override** and typing a new value in the **Value** field.

5. In the list of parameters, you can perform the following actions:
   * Override individual parameters:
     1. Next to the **Name** field for the parameter you wish to modify, select **Override**.
     2. In the **Value** field, enter the new value.
     3. Repeat these steps for each parameter that you want to override.
   * Override all parameters:
     1. Select **Override all** to enable overriding for all parameters.
     2. In the **Value** field for each parameter, enter the new value.
   * Remove overrides: Select **Remove overrides** to disable the ability to override any parameter from the selected test cases.

## Result

The parameter overrides are applied to the selected test cases within the test set. When the test set is executed, the test cases run using the overridden parameter values.