If a course requires a practical assessment then it may have a validation statement which must be filled out by someone other than the trainee. This is for you to verify that the assessment has taken place and that the trainee meets your required standard.
Practical assessment guides are here
Managers
See the instructions here for validating a course.
Trainees
Once the course is validated then you can download the operator's certificate and ID card by going to Your courses > Enrolled courses and clicking Certificates.
Changing the details on a course validation statement
If you make a mistake or you need to add more information, simply click Revalidate and you can regenerate the course validation statement.
Note that you can't change the dates that the modules were completed.