I would like to sign in a new user

For your reference

https://quickbooks.intuit.com/learn-support/en-ca/manage-users/add-delete-or-change-user-access/01/2...

You may add user if you are using QBO Essentials or Plus

https://quickbooks.grsm.io/Canada

Hi paul158,

Welcome to the community family! QuickBooks offers you the flexibility to add new users as well as changing your credentials when needed. I want to make sure you have everything you need to complete your task.

The first article shared by @Fiat Lux - ASIA provides the step-by-step procedure to add, delete, or change user access. If you're interested in updating your current user info, here's how: Change your email, user ID, or password for QuickBooks Online, QuickBooks Online Accountant, and Qui...

You may also find these other articles useful.

• How many users can I set up?
• User types and user permissions in QuickBooks Online

I hope this helps! Feel free to stop by if you need anything else.