Since Project Online was launched back in 2013, there is no more back-up and restore feature available.
UserVoice proposed to introduce again this feature strongly used by Project administrators. You can vote here. I had the opportunity to write a review on this idea on Erik's blog. You can find the review here.
I recently added a new idea on the UserVoice page for versioning projects. This is kind of related but the versioning should be accessible to the users (like the sharepoint versioning), not like the initial back-up/restore feature. Moreover the scope should be extended to the new Project Service platform and not only Project Online.
What do you think? Would you vote for this idea?
