Before you build too much structure into your FileMaker solution, you have to start planning for how multiple users are going to use the database system. Taking what you know about how FileMaker’s environment works, you can start to build additional functionality into your solution based on the core functionality which you’ve created.
Link to the file if you don’t want to rebuild from scratch.
https://www.filemakermagazine.com/youtube/scriptology/3/Lesson27