The Pros and Cons of 쇼핑몰
https://www.evernote.com/shard/s332/sh/804f497b-e4a3-4cee-acf0-b0a0ad856d00/5e49272688b3240fc2fbb1b3a8a56e4b
Every direct vender can have a “bad” batch of leads occasionally. The rule of thumb is to invest in at least 3 batches of potential customers before you make a choice about the quality.