In ocean freight operations, confusing the "three cut-offs" is a common cause of rolled cargo and additional fees. SI Cut-off is the deadline for submitting Shipping Instructions and manifest data to the carrier; missing this will incur amendment fees. CY Cut-off is the deadline for the terminal yard to receive full loaded containers; missing this means the container cannot be loaded, resulting in demurrage and storage fees. Customs Cut-off is the deadline for customs to receive the clearance release; customs clearance and release must be completed before this deadline. During peak seasons, these deadlines are often advanced. Companies must establish standardized operating procedures to ensure real-time information synchronization among factories, trucking companies, customs brokers, and freight forwarders.