Can you help me how can I check my quick book ID?

It seems like you're referring to the company ID, Sally30. 

I'll guide you on where you can find it:

1. Click the Gear icon.
2. Select Account and Settings.
3. Go to the Billing & Subscription tab.

You can view the company ID on that page. 

I'll share the article on how to edit company settings for future reference. 

Get back to us if you have other concerns. We'd be pleased to help you.