The QuickBooks Sole Trader Plus plan doesn't support a direct integration with SumUp since the software is designed for basic accounting needs and supports only a limited selection of third-party integrations.
As a workaround, you can look for a third-party application to help integrate SumUp with QuickBooks. For more specific guidance on integration procedures, we recommend reaching out to the SumUp support team directly. They can provide the most accurate technical requirements for connecting their service to the program.
Feel free to reply to this thread if you have additional concerns.