1, single number entered incorrectly.
Please check whether the single number entered is correct, or verify that the single number entered is correct again.
2. The courier number has not been entered into the system.
If it's a new courier, the courier number may not have been entered into the SF system, and it will take some time to find it.
3. The courier number has expired or is invalid.
Please check the validity of the express delivery number, or contact the sender to confirm whether the express delivery number is correct and valid.
4. System failure
SF's system may be out of order or under maintenance, resulting in no express information. It is suggested to try to inquire later, or contact SF Customer Service for information.
Advantages and disadvantages of SF express waybill number query;
Through the inquiry of SF Express number, the logistics information of express delivery can be obtained conveniently and quickly, avoiding the trouble of blind waiting and asking. At the same time, it can also enhance the safety and reliability of express delivery, because the inquiry record can be used as one of the evidences of express delivery.
However, there are some disadvantages in using the express number to query. For example, sometimes the logistics information is not timely or accurate enough, so it is necessary to enter the correct express order number in the query process. For users who have not kept the order number or whose order number has expired, it may be difficult to query.
Sf express waybill number query is a convenient and quick function, which allows users to query express logistics information anytime and anywhere. However, when using the query function, we need to pay attention to the accuracy of the single number input and the accuracy of the query results. If you have any questions, please contact customer service in time to avoid unnecessary troubles and losses.