If you have a QBO integration with Float, you cannot code Refunds with QBO Customers and Projects.
Refunds on Float cards are exported to QBO as Journal Entries, and QBO does not support Customers and Projects for Journal Entries at this time.
If this poses a significant challenge to your accounting practices, let us know at support@floatcard.com! We'd love to hear more and ensure we're including your feedback in Float's development.