Dingding is a very popular office social communication app, so how to set up Dingding blacklist? How to set up a blacklist? Let's get to know it with Xiaobian. How to set up the blacklist? How to add a blacklist to Ding Ding: 1. Open Ding Ding and enter the application, click [Address Book]-[My Friend] in the lower navigation bar, then find [Friend] you want to black, and click the friend to enter the details page. 2. Then click […] in the upper right corner. Click [Add to Blacklist]. Click [OK] at the prompt.