When updating the QuickBooks app or the payroll function, there are sometimes problems and errors. One of these common errors is the QuickBooks error 15103, which makes it impossible for the user to do an update. The error usually happens when a file is broken or corrupted, but there are other things that could cause it. This blog is for you if you've seen this error and can't figure out how to fix it. Here, you'll find detailed information about the error, including when it happens, where it comes from, and how to get rid of it completely.