l need help on this… when the button “Add to favorites” was clicked multiple times, the item(Clicked) appears on favorites collection multiple times… how can l limit the selected item on favorites collection to one??.

l need help on this… when the button “Add to favorites” was clicked multiple times, the item(Clicked) appears on favorites collection multiple times… how can l limit the selected item on favorites collection to one??.
Use visibility conditions to make the button go away if the item has already been favourited.
Or, change it to a “Remove from Favourites” button.