Thanks for reaching out to us here. QuickBooks Online provides the option to change your phone number when you need to. I would be happy to help you get back on track!
To change your phone number, follow these steps below:
1. Sign in to QuickBooks Online. 2. Select your profile icon next to the Gear icon. 3. Select "Manage your Intuit Account". This opens the Intuit Account Manager. 4. Select the "Sign in & security" menu. 5. Select the "User ID, Email address, Password, or Phone" section. 6. Make your changes. 7. When you're done, select "Save".