Currently, the minimum cost for each item in an Other Sales campaign is 1$. I presume that this is so that no sales transaction of less than 1$ can be made. This feature request is to allow items worth less than 1$ in Other Sales campaign, and replace the 1$ limit on items with a 1$ limit on the the sales transaction. That is, the customer would have to purchase enough items to total at least 1$. This will help create Other Sales campaigns where items are worth just a few cents, like a canteen.