Splitting the Database

I just inherited an already created access system; however, the initial developer did not split the system into front end and back end databases. this system will be in a multi-user environment. i went through the process of splitting the database and then linking the tables. all seemed to work fine; however, i notice that when i go to my table relationships, they are gone. the system seems to update and work fine. what happened to the relationships?

You need to set up the relationships in the Back end database first. Then you can set them up in the front end database.