Can I change my user ID ?

You certainly can, grandgroupv-gmai. I’ll walk you through the steps on changing your QuickBooks user ID.

Let’s sign in to your QuickBooks Online account and change the info in the account manager. This way, you'll be able to update the details in an absolute breeze. I'll show you how:

1. Navigate to your profile icon next to Settings.
2. Select Manage your Intuit Account. 
3. Click the Sign in & security menu.
4. Select the User ID and make some changes.
5. Hit Save.

Here’s an article where you can read FAQs about resetting your password and signing in: Change your email, user ID, or password for QuickBooks Online.

In case you'd like to use one email and user ID for all of your QuickBooks Online companies or change specific areas, I've added some references that can guide you through the process:

• Sign in to multiple QuickBooks Online companies with one user ID
• Change your business name, contact info, or Business ID No in QuickBooks Online

You can always count on me if you need anything else with managing your account. I'm always here to address them for you. Enjoy your weekend!