Your Display Name is the name shown in Slack channels.
It must follow this format : Korean Name / Company / Group / Team 

On Desktop 

1. Click your profile picture in the left sidebar. 
2. Select Profile to open your profile on the right panel.
   
   
3. Click Edit on the top right.
   
   
4. Update the Full name. Format: KoreanName EnglishLastName EnglishFirstName
   Example: 홍길동 Hong Gildong 
5. Update the Display name. Format: KoreanName / Company / Group / Team
   ex. [정직원] 홍길동/SKCC/Cloud Platform 그룹/Managed Service팀
         [협력직원] 홍길동/UWS
6. Click Save Changes. 
   
   

On Mobile App 

1. Tap your profile picture at the top of the screen.
   
   
2. Select View Profile.
   
   
3. Tap Edit Profile.
   
4. Update the Full name. Format: KoreanName EnglishLastName EnglishFirstName
   Example: 홍길동 Hong Gildong
5. Update the Display name. Format: KoreanName / Company / Group / Team
   ex. [정직원] 홍길동/SKCC/Cloud Platform 그룹/Managed Service팀
         [협력직원] 홍길동/UWS
6. Click Save Changes.