After online shopping, will there be a message to remind the distribution company that the lost parts will be replenished by the merchants?

This won't be there. Because if the merchant replenishes, it will definitely send another courier, and your initial courier number will not be displayed. He will only explain where the original courier will stop if it is lost.

After the courier was lost by the courier company, it was the sender who demanded compensation.

According to Article 27 of the Provisional Regulations on Express Delivery, if the express delivery is delayed, lost, damaged or the internal parts are short, the liability for compensation for the insured express delivery shall be determined according to the insured rules agreed between the express delivery enterprise and the sender; For uninsured express mail, the liability for compensation shall be determined in accordance with the relevant provisions of the civil law. The state encourages insurance companies to develop liability insurance for express delivery losses, and encourages enterprises engaged in express delivery business to take out insurance.

Article 47 of the Postal Law of People's Republic of China (PRC), postal enterprises shall compensate for the loss of vouched mail in accordance with the following provisions:

(a) if the insured mail is lost or completely damaged, it shall be compensated according to the insured amount; In case of partial damage or shortage of internal parts, the actual loss of the mail shall be compensated according to the ratio of the insured amount to the total value of the mail.

(2) If the uninsured vouched mail is lost, damaged or the internal parts are short, compensation shall be made according to the actual loss, but the maximum amount shall not exceed three times the charge; If the registered letter is lost or damaged, it shall be compensated at three times the charge.

Postal enterprises shall state the provisions of the preceding paragraph in the notices of business premises and the mail receipts provided to users in a way that can attract the attention of users. Postal enterprises that intentionally or grossly neglect to cause loss of vouched mail or fail to fulfill the obligations specified in the preceding paragraph have no right to invoke the provisions in the first paragraph of this article to limit their liability for compensation.