How to pre-fill date field with a date that is 28 days from the current date

Hi team

I would like this form to show a pre-fill the date in the circled "I want to cancel my membership on" date field.   I would like the pre-filled date to be 28 days from the current date.

Thanks for your help.

Richard

This can be achieved with an 'Update / Calculate Field' condition.

Here's how you can achieve that: