The processing type User Entry allows you to either enter the required value manually or use the default value for the variable when you execute the query.
The processing type User Entry is available for all variable types.
If you select the processing type User Entry for an input-ready variable, you can manually enter the required value when executing the query.
When you create the variable, you can specify a default value on the Default Values tab in the Variables Editor. If you enter a default value, this is shown in the input field of the variables screen for variables that are ready-for-input. For variables that are not ready-for-input, the default value is used as the variable value.