While most carriers will accept packages within a few days of printing labels, it's best to set the ship date to the day you actually plan to send a package out.
IMPORTANT: it is at the discretion of the carrier and/or post office to accept a package if the label date does not match the current date. If your label date does not match the current date, consider generating a new label with the correct date. Learn more.
ShippingEasy will automatically set the current date as the ship date when you're assigning rates and creating shipments on the READY TO SHIP page. Within this page, you can select a future ship date. It's best to always set the Ship date to the day you intend to hand the package over to the carrier. Learn more about advancing the ship date of shipments.