Dear [Colleagues/Team],
I am pleased to announce that [Employee Name] has been promoted to the position of [New Position].
[Employee Name] has been with our company for [Length of Time] and has consistently demonstrated [Positive Traits/Accomplishments]. We are confident that [he/she] will excel in [his/her] new role and will make a valuable contribution to our team.
Please join me in congratulating [Employee Name] on [his/her] promotion, and in offering [him/her] your support and assistance as [he/she] transitions into [his/her] new position.
Sincerely,
[Your Name]
[Your Title]