QuickBooks Online integrates with various third-party applications. However, to verify if Coconut can be connected to the system, I recommend reaching out to their support team. They'll be able to verify which application can be consolidated with their app.
If this isn't possible, they can always coordinate with our developers to evaluate this procedure, as they are the experts when it comes to accessing production QuickBooks Online companies.
You can always get back to me here if you have any other concerns. Helping you is my priority. Have a lovely day!