When, after booking confirmation, the line unilaterally "cuts off" your containers from loading and rolls them onto the next ship - this reason is called "vessel overbooking", i.e. there is not enough room on the ship on the actual date to load your scheduled containers. For example, this is the most common reason for cargo delays in Ukraine during export, especially during the grain season.
It would seem that we live in a time of high technology, when the resale of seats on the ship - all this has long sunk into oblivion and is a relic of the past. Alas, this happens in our time, and this becomes especially true during the holiday seasons, for example, on the Chinese New Year, or before the start of Christmas.
If you have the opportunity, then try to avoid peak seasons. If you just need to send a batch at this time, then I strongly do not recommend resorting to the services of small and unknown carriers. Their prices will be lower, but in such "very busy" seasons, they simply cannot cope with the volume. More reputable carriers, in turn, in case of any problems, can use larger vessels from different trade routes.
As you can see, there are many typical reasons for cargo delays. Only 25 of them were collected in this review. If you are just starting your import or export business, you are very lucky to read this article because every point has been earned through hard work. And now you can make smarter decisions about timing, vendors, routes, and more.
Read more about Why your cargo has not yet arrived at the port or the main reasons for the delay of vessels