Thanks for reaching out to the Community, jose1988.
 

QuickBooks Online users can email receipts to customers without using the desktop or mobile applications.
 

Here's how:
1. In the left navigation bar, go to Sales, then Customers.2. Open a customer's profile by clicking on their display name.3. Find the transaction receipt you're working with.
4. Hit the drop-down arrow under your ACTION column.
5. Choose Send.6. Make any necessary changes to the information in your To, Subject, and Message fields.7. Select Send.

I've included a few resources below about user types and managing permissions. These will help better understand why a subscription lets you manage who has the ability to send emails while logged into your books:

• User types & user permissions
• Add, delete, or change user access
• Managing users for your company

I'll be here to assist if there's any other questions. Enjoy the rest of your day!