I'm sorry but it seems you are not getting how it works. Express Invoice and Inventoria are two different software. Inventoria will be used to manage your inventory and when you sync it with Invoice, it will only manage the stock levels, no other information will be sync. For example, if you add a new item in Inventoria, that item will NOT show up in your Items list in Express Invoice, it does not matter if you restart Express Invoice, you can only see it when you create an invoice. So, when you create an invoice, Express Invoice will look for that item in Inventoria, retrieve the items information and add it to the invoice, then, the item will be deducted from your stock in Inventoria. So there is no need for Express Invoice to keep checking for updates since it will only need the info from Inventoria when you create an invoice. Again, the items you add in Inventoria will not show up in your Items list in Express Invoice.