The protocol is the detailed plan for your scoping review. It explains your rationale and methodology and should be developed right at the beginning. You can refine it as you go on.
The protocol for a scoping review will have similar information to that of a systematic review protocol. As we said earlier, you will not need to register your protocol for a scoping review, but the same process should be followed.
Any deviations from the protocol in the final report should be highlighted and explained.
Note: confirm with your supervisor if you are required to include a written protocol as part of your thesis.
It's also a good idea to check through protocol registers to see if another group of researchers has already registered a review on your topic.
See our Systematic Reviews guide for a list of protocol registries.