https://www.epo.org/en/node/network

With the network installation of Online Filing, can more than one person work on the same application at the same time?

No. It is possible for several users to access the same draft at the same time, but individual applications can only be accessed by one person at a time. When a user opens an application, the application is internally blocked for opening by other users. Other users attempting to open the application will see a message asking them to try again later or to open it in read-only mode.