Why can't the logistics customer service dialogue be deleted?

The system does not have the function of deleting conversations. The logistics software system has not deleted the dialogue function for the time being, so it is impossible to delete the dialogue with logistics customer service. The concept of logistics was first formed in America. It originated in the 1930s and originally meant "distribution in kind" or "distribution of goods". 1963 was introduced to Japan, which means "commodity circulation" in Japanese. After 1970s, the word "logistics" in Japan gradually replaced "goods circulation".