[Scully]

Hi Michael,

Alexandra here, Ecwid team. Thank you for contacting us!

If we speak about the built-in date picker for product options, at the moment it is not possible to restrict the dates to certain ones only. However, it is possible with the custom solution based on Ecwid API. The necessary API docs can be found here: https://developers.ecwid.com/api-documentation

However, such task requires certain programming skills, so you may consider hiring a third-party developer; otherwise you can count on the services of our customization team. Just fill in the form here (https://ecwidcom.typeform.com/to/vIlijv) and our developers will reach you out shortly to discuss further details.

Hope this helps. Please, feel free to contact us again, if any other questions arise.