In fact, this is not absolute. If a small seller has just started and does not have a lot of data, ERP may not be necessary.

Generally, it is only used in the start-up, mid-term, or mature stage, and the use of the start-up, mid-term, and mature stages is not quite the same. To borrow a saying "the economic base determines the superstructure", for cross-border sellers "the size of the store determines the system choice".