Yes, you need to carefully track the periods you are providing evaluation services. All Contributors are expected to keep independent records, using minute-level detail, of time spent performing evaluation tasks to ensure accurate and complete invoices. Please keep track of which projects you are working on, down to the minute, as you will be required to enter this information into your invoice. There are several free tools available on the Internet you can use to track your time.
If you still need help, please send us a ticket here.