Welcome to the QuickBooks family, @Ganga.

There are several possible reasons why you're not getting the invitation email. I can help you figure this out in no time.

Let's start by checking the junk folder of your email account. It could be that your provider is recognizing the invitation as spam and sending it directly to this location.

Also, please make sure to whitelist the email server hostnames and IP addresses to ensure the mail server will not block emails from Intuit.

For the detailed instructions, visit this article (scroll down to Whitelist Intuit’s email server hostnames to avoid invitations getting tagged as spam): What to do if invited users did not receive your email invitation.

If you're still unable to locate it, kindly ask your boss to review the details and resend the invitation email.

In case you need to provide the steps, here's how:

1. Log into the QuickBooks account.
2. Click the Gear icon in the upper-right corner and select Manage Users. 
3. Go to the Users or Accounting firms tab.
4. Search for the user.
5. Press the Resend invite option. 

For additional information, I've attached some articles about customizing user access, as well as a video tutorial for visual reference: Add, delete, or change user access.

Please know that I'm just a post away if you have any other questions. Have a great day ahead.