How to send WeChat to the dealer after changing the original salesman?

This is very simple, just send a text message or WeChat notification to the customer you used to serve. For example: Dear Mr./Ms. XXX, due to the internal post transfer of the company, my colleague XXX took over the specific work I was originally responsible for, and I will continue to serve you wholeheartedly. Its contact information is: xxxxxxxxxxx. I wish you a happy life.