How can I test my app on on multiple merchant in the sandbox ?
When I preview in develloper dashbord, it only can be installed on my default merchant.
Also, when try to upgrade the plan
https://sandbox.dev.clover.com/v3/email_billing_agreement/fdd41802-dfcb-4d9d-8f41-191db7dc70e1
message: "Cannot prepare merchant's billing agreement email"
