Why does Date reservation widget need the API key?

Al utilizar el date reservation me dice que "For the widget to work properly, you need to get a Jotform API key from your account settings, so that the widget can reference previous selections and prevent a date from being selected twice." Como hago ésto?

Muchas gracias

Are you sure this happens when using Date reservation widget because it does not require from you to provide the API key?

I would also advise you to recreate Check in Check out widget since it does not work properly and it will work again once you recreate it.

We'll wait for your response.