Once an order has been placed with Multicolour.com, the ability to cancel or change the order may depend on the specific circumstances. Orders can often be modified or canceled shortly after they are created, but as the processing and shipping stages commence, this may no longer be possible. It is essential for customers to check the order confirmation details and review any specific policies related to order changes or cancellations. This information should be available on the Multicolour.com website, where customers can find relevant guidelines. If any modifications or cancellations are necessary, it is advisable to act quickly to increase the chances of success. For exact procedures and options, referring to the website will provide the most accurate and timely information.