Customs clearance
This one should be the most problematic and hardest to handle in the shipping process, since the final control is not depending on you. The very first essential part is the required documents: all the relative certificates of goods, the legit proof of your trade and freight, and the correct customs clearance form. Anything wrong will lead to serious consequences, such as goods suspension, repatriation of goods or even fines.
Failure to establish good ties with customs authorities will also be a huge problem. As an active player in shipping, tons of routines will relate to the customs, too much time wasting on the clearance would have a toxic effect on your reputation.
Besides, when the delay on custom clearance really happens, the first thing is to find out the reason behind it. No phenomenon exists in isolation, and the same is true of the causes of customs clearance delays. There are both internal factors related to the shippers themselves, and of course, external factors related to the external environment.
- Internal factors related to the owner of the goods himself.
All information and documents do not match, especially the completeness of the declaration elements or common understatement of the value of goods, quantity discrepancies, etc.
 2.External factors related to the general external environment.
This external factor is mainly related to the external environment and national policies of the importing and exporting countries.