What does it mean that the recipient has signed in 1688?

If "Signed for" is displayed in the logistics tracking information, the goods of the logistics have been delivered to the recipient.

Reminder: if you do not actually receive the goods, it is suggested that you contact the corresponding logistics company to inquire the reason, or you can contact the seller to communicate, and pay attention to your transaction, so as not to make payment to the seller because of the timeout mechanism.