Variables can used to parameterize text field values in tool editors (e.g., input tabs, request/response message fields, and tool configuration fields). A text field might reference environment variables, a data source column, a data bank column, or a variable defined for the current suite. 

To reference a variable in this manner, you use the ${var_name} notation: a dollar sign with the variable's name wrapped in curly braces. 

Static Variables 

Static variables represent values that remain constant during the execution of a tool. This includes:

Dynamic Variables 

Dynamic variables represent values that may change during tool execution—for example, data source columns, data bank columns, and suite-level variables. Data source columns depend on the current data source row.

Additional Information