We have one license for two users and we've had it for almost 15 years but 8 months ago it just stopped working. Sometimes I can't access QB from my computer when the other user is logged on, and sometimes even when he isn't logged on I get an error message and can't get on. We've tried everything but Quickbooks can't get it to work. Tech support is all working from home so they can't discuss with each other and QB customer service is truly awful.