Hello! I made a super simple app to track exp...

[T_M]

Hello! I made a super simple app to track expenses. It’s just 4 colums: Date, Item, Amount and Type.

The problem is, right now my Key column is the Date column which won’t work because there will be multiple entries on a given date.

So my question is, what would be the best type of key to use for this “Key” column?

Also, I don’t want it to be visible on the app so is there a way to keep it hidden?

Thanks in advance! Tim