I fixed it. It was a careless mistake. I was fetching id from a table "profile" i created instead of "users"

Thanks for your effort

When i am using Appery Login service , i wish to store _id in a variable so that i can use this as a key to identify information stored in other tables. But the login serice return a different _id as stored in the database. Can anyone help me find out the reason why this is happening?