Please note that cancelations are possible only if your order has not been submitted to production. Make sure to set a comfortable hold time, within which you will be evaluating if the order should be submitted to production or cancelled. For more information on how to set up order hold time please access the following link: https://picanova-api.freshdesk.com/support/solutions/articles/77000484224-how-can-i-set-up-order-hold-time- .
Eventually, you can reach Support to request the order cancellation. Please keep in mind, that if the order has been already produced, cancelations can't be further supported.