Hey DavidD,
Your contacts just need to have unique email addresses in Method, they're not required to be in QuickBooks since Method supports multiple contacts per customer. They can manually register by accessing your portal. Hope this helps!
- Ashur
Need more help? Ask us about Method consulting services
Ashur Shamon
Lead Solutions Specialist, Professional Services
Method Integration Inc.
www.method.me
Toll Free: 1.888.925.6238
Local and overseas: 416.847.0400
Fax: 416.640.6027
E-mail: a.shamon@method.me