c# - Mailchimp List Member Post Issue

Question

I am testing Mailchimp API 3.0 to add some members to a specific list.

The post request to add new members works great. But if I go to MailChimp website and manually delete the new member from the list and then try to add the same member again, I receive an bad request error, informing the member already exists on the list.

Why is this happening, if the list member is deleted?

Answer 1

当 mailchimp 删除一个成员时，它只会将其标记为已删除。它仍然存在，当您再次上传时，您违反了唯一键索引。只要它们的 ID 不同，就可以有重复项。