@RCV This isn't an App Integration issue. When we're talking about Shopify Balance, we're talking about a bank account that we're trying to add, not general Shopify store integration. You know how Quickbooks has "Quickbooks Checking Account?" Shopify has the exact same thing, except it is called "Shopify Balance. We have a routing number, an account number, and you can do ACH withdrawals and deposits using them. When I try to connect my Shopify Balance banking account so it appears along with my Wells Fargo Business Checking Account, it doesn't work. Not that it gives an error, it just fails immediately after trying to sign into my Shopify account in the window that pops up.