A betting slip contains the selections registered by you and may contain 1 or more selections.
A simple bet contains only 1 selection, which must be a winner in order for you to win your bet. The possible returns are calculated by multiplying the value of your bet by the available odd.
Reference example of a single bet - SINGLE_22-04-27_14-28-12
A multi-bet contains between 2 or more different selections, all of which must be winners in order for you to win your bet. The concept of "multiplier" is applied to the calculation of the total odds of the betting slip and, consequently, to its potential gains.
Reference example of a multi-bet - COMBI_22-04-27_14-28-13