Well I think this is because the plan is intended to be a small business, like a garage sale or so
That rude. Because most small businesses in real life have a cash register. I mean, if you own a bakery underneath where you live, how are you going to sell your product without a cash register? The cash registers don't work in this pack.
I am having the same issue. I have three businesses with three different sims owning it. And one of them is a clothing store. And the cash register doesn't work there either.
You may never see this but I'll give it a try. I know it's not what some of us really want but you could compromise and just have the register as a prop. It will at least look like a legitimate business. It's what I'm doing. It's there just for looks and, at least for me, it provides a little bit of that "real" feeling.
Just consider it for a while before deciding.
