1, it is harmless for large groups to retreat quietly.
2. The small group informed the leaders to officially leave.
Ex.: I have gone through the formalities of leaving my job. Thank you for your concern. I quit the group first. If you need me, you can contact me.
After informing, I sent a message in the group: Dear colleagues, I'm sorry to say goodbye to you in this way, because my personal situation can't continue in this post.
The warmth of the past is vivid, and I dare not forget it. Fortunately, I met the support of my boss and benefited a lot from the trust of my colleagues. It is not appropriate to elaborate. I also wish my colleagues every success. I hope to see you again.
3. A close colleague sends a red envelope and then retires.
Colleagues say a few words of greetings, it is best to send a red envelope to leave the group, thank you for your concern, we are all friends, and we are destined to meet again.