Explanation
This is the recommended solution to prevent duplicate cases when a customer makes a new social post after closing a case. In Inbound Settings, there is an option to enable case reopen, which allows a closed case to be reopened when a customer replies on the same social network within a specified number of days. Setting this option to 3 days means that if a customer posts a new comment on Facebook or Twitter within 3 days of closing a case, the original case will be reopened instead of creating a new one. Verified References: : Enable Case Reopen