Mileage section: I am trying to change the vehicle for multiple trips by selecting the change vehicle button. It is not working and I have to select them individually

Hi Payroll66,

Welcome to the Community. It's essential to correctly record your trips to keep track of your books. QuickBooks Online is a flexible program that simplifies the way you manage your books. I'd be glad to point you in the right direction to change your vehicle.

In order to better assist you, I recommend reaching out to our customer support team . They'll be able to verify your account details and guide you to your QuickBooks goals. Here are the options for contacting our team. 

• Schedule a Callback or start a Chat: click (?) in the upper right in QuickBooks Online > enter "Contact support" > choose Contact Us > provide a brief summary > select Let's Talk > choose Get a callback or Start a Chat.
• Social Media: Facebook, Twitter, and Instagram. Support hours are from Monday to Friday between 9 a.m. and 8 p.m. ET

Let me know if you have any questions, I'll be happy to help.

Already went down that path and have not got anywhere.