Support
  1. American Express Vendor Pay
  2. QuickBooks Online
  3. Troubleshoot

QuickBooks Online sync error: Email Address does not conform to the syntax rules of RFC 822. Supplied value: XXXXXXXXXX

Why the sync error occurs

This error occurs when an email address for a contact in QuickBooks Online isn't in the proper format of address@domain.suffix.

How to fix the sync error

Edit the email address of the contact so it is in the proper format of address@domain.suffix, or delete the email address completely, then sync again.

Account Setup View all

Connecting With My Vendor View all

Making Payments to your Vendor View all

Bill Management View all

Getting Paid by your Customer View all

Invoice Management View all

    Load more

    FAQ

    Payment Cancellations Payment Void Timing Paying Bills with Vendor Pay Vendor Pay Basics What is a Virtual Account Number (VAN)? Virtual Account Number (VAN) expiration What is Vendor Pay? What is Bill.com? Contacting Bill.com Support Vendor Pay Decline Reasons Enrolling in Vendor Pay

    Can’t find your answer?

    Available Monday - Friday, 5am-6pm PT.

    Email Support
    Message Center