Restoring back up

I use a desktop at home and a laptop at my office. I want to back up data each day whether I work on my laptop or desktop so that the data is up to date on each machine. But every time I have to add business to update my data and remove the old one. Is there a way that whether update back up/restore can be done on the same business

No, this is as designed. You can’t override existing business by importing backup. You can delete old business after importing new business.

Thanks Lubos,
I mean to say override old business with latest back up taken from other computer. so that the record is uptodate on both computers.