How to do collaborative unreal project?

I started an unreal project with a friend and they have joined my team and are an administrator. However we still cannot see each others progess. please help.

You can use source control and simply have the files somewhere you can both get to them or there’s a plugin called Multi-User Editing which says “Allow collaborative multi-users sessions in editor”

these are the options i know of, i haven’t use either yet honestly
and there’s certainly other ways to do it probably

Definitely what i would give a try first personally, remember to backup your project and what not blah blah and package to ensure you haven’t created some error that is unsearchable without being an expert on call stacks etc

If this is the solution please mark it as so, if not I’d like to understand the issue in more depth to help you find the appropriate solution for your team