In TIA Portal V16 and later, you can choose to use exclusive engineering. The advantage of using Exclusive Engineering is that you can work in an exclusive local session, and the TIA Portal project server will become the central data store for your project. As long as you are working in an exclusive local session, the project server will be reserved exclusively for you and locked for other users. After transferring the changes to the server project, a new revision of the server project will be created immediately. If necessary, you can also revert to individual revisions to restore an older working version. Therefore, the history of the project can be provided to you at any time.