Use a standard, pre-made template (like those on HiBob) for all employees to reduce bias.
How to Write Up an Employee: 11 Common Situations - BambooHR Ultimate Protector Free Download
If you are looking for a specific type of employee write-up, please clarify if it's for: (e.g., missed deadlines) Conduct issues (e.g., tardiness, policy violation) Use a standard, pre-made template (like those on