Hi accounting416,
Syncing third-party apps to QuickBooks Online is an awesome way to streamline your bookkeeping and expand the program's capabilities. It's awesome to hear that you're considering connecting your account to another program to make the most of your options.
Any questions related to how third-party applications successfully sync with QuickBooks should be raised with that app's development team. Since the information will be funnelling from the app into QuickBooks, it's going to need to be set up on the app's side to match accordingly if this is a necessity for syncing. Each app has its own set of criteria for connecting to QBO.
If you've been directed to change any information in QuickBooks and you're unsure how to do so, our tech support team is always here to help you.
I hope this helps get you pointed in the right direction.
Have a great day.
