We need to change e mail id in invoice format? how to do the same

Hey there, @nagaraju-b-tya-c.

Are you trying to change the email ID in your printed invoices? If so, this is the same email address attached to your QuickBooks Online account. 

Let me walk you through the steps to update it. Here's how:

1. Click the Letter icon beside Settings ⚙ .
2. Select Manage your Intuit Account.
3. Go to Sign in & security, then click the Email address arrow.
4. Enter your new email and select Save.

You can also check out this article as an additional reference: How to change the email address you use to sign in to QBO.

Let me know if you need further assistance with this. I'm always around to provide answers and clarifications to your questions. Have a great day ahead and take care.