Why can't I find logistics information in the courier number?

The courier company did not update the information in time, the courier number was entered incorrectly, and the parcel has not been sent yet.

1. The courier company didn't update the information in time: the courier company needs to update the logistics information of the parcel to the system in real time, but for various reasons, the information will not be updated in time.

2. Incorrect delivery order number: If the delivery order number entered is wrong, the query result will definitely be wrong.

3. The package has not been sent: the courier company will not update the logistics information of the package if the package has not been sent.