# Action parameters

When you use a Call action part, you may sometimes need to provide parameters:

1. Selecting an action with the Call action part shows the default parameters for this action.
2. Move the cursor over the part. Parameters that you can edit are coloured blue and underlined.
3. Click on the text to edit the parameter.
4. Some parameters will display a list of commonly-used values, but you can enter another value for this parameter if you wish.
5. You may also enter a variable or an expression that will be evaluated when the flowchart runs. You can find information about restricted values for parameters in the relevant part details.

## See also:

- Call action