How do I write officel notce that the employeee has been promoted for a certain position and he will be under assessment after 3 months

Hi, ashgy!

Without knowing more specifics as to what this is concerning, I have put together a possible sample based upon the information that you have given.

Also, if this letter is to the person who is being promoted, the letter might go something like the following:

Dear [Name],

It's my pleasure to inform you, that you're being promoted to [Name of Position]. Your new position involves... You'll be working with... And, you'll be reporting to...

Please know, that your performance in the position will be under review after three months.

I wish you the best in your new position!

Sincerely,

[Your Name]

Hi, ashgy!

I'm not sure if what I wrote was helpful to you or not. Would really appreciate some feedback from you concerning that.

Thanks!