So I just did a Shopify Balance integration with my shipping provider.   Same login prompt dialog.  The shipping service uses PLAID for their integration.  Worked PERFECTLY.  I will be joining @JSpiers667x and dropping QBO.   They clearly can’t support a critical integration needed to manage accounting for businesses that use Shopify web stores.  I’ve spent hours working around QBO limitations.  Their support is terrible.

No more.