Mission papers can be filled out with the physical paper application forms, or in many parts of the world young people, bishops, and stake leaders can complete the mission papers online. The Church refers to this online mission papers website as the Missionary Online Recommendation System, and it can also be accessed at lds.org/mss. The online process is similar to the offline process in most respects except that the information is put in the internet-based system rather than the paper mission application form.
In order to log in and get started with the online mission application, a prospective missionary needs to have an LDS Account. LDS Account is the username and password you use to access personalized tools on LDS.org such as your ward and stake calendar and directory. If you don’t have one, go here to register for an LDS Account. You will need to know your Church membership number, which you can get from your ward clerk, to complete the process of getting an LDS Account.
When you are ready to begin the process of getting your mission call, talk to your bishop and he will log into the mission papers website and make it so you can log in. Even with an LDS Account, if your bishop hasn’t granted you access, you cannot get into the Missionary Online Recommendation System.
Good luck. Let me know if you have any questions. And God bless you in your mission preparation.