For information on how to customize your invoices with QuickBooks, please visit their help center link or call their support line:
https://quickbooks.intuit.com/learn-support
QuickBooks Support Phone # : 1 (800) 264-1981
Here are a few helpful articles on how to adjust your email address, and subject lines for your customers.
Change the email address your customers see in QuickBooks Online
QuickBooks Desktop | Changing customer facing email address
Email invoices as PDF Video Guide
If you are still having issues **DO NOT WORRY** Transcepta is still here to assist you!
If you are emailing your invoices directly from QuickBooks, please delete the subject of the email, and report only your authorized user email address (e.g., john.doe@company.com) as the subject of the message. With this, our system will be able to route the email from QuickBooks directly to your Transcepta account for processing.
For a more detailed step by step guide on this process, please download the attached PDF on How to submit an Invoice via QuickBooks.
For more information on submission requirements, check this link.