The poster of this post has asked for a "Warning Letter." The draft you have provided is somewhat suitable for an office circular. In fact, the language seems as if it is a homily delivered by a towering personality of that company. Exhortations do not work in a corporate environment. We need to be specific. I recommend verifying your draft with "
The 7 C's of Business Writing." In addition to this, please check the correctness of 1-2 words as well. Hope you did not mind me bringing out the anomaly in your writing. All the best!
Dinesh V Divekar
You can draft a letter this way:
Team,
Greetings. We would like to bring to your notice that some of our employees are involved in personal work during office working hours. We would like to address this issue. People working on personal tasks during official hours will definitely bring down the productivity of an individual as well as the group. This will definitely affect the company's turnover too. People who intend to work on personal tasks during office hours bring down the morale and the value that they hold in the company. There is a great level of trust that we have for our employees, and we are sure that you will not let it go away. Taking these points into consideration, we kindly request your cooperation.
Regards,
HR Team.
After this mail, if your employees still continue, then you can add your action plans.