How to deeplink back into my App after deeplinking into the Venmo App to approve a payment

Question

I am able to deep link into the Venmo App to get a payment request authorized.

I am though presented with a success message in the Venmo App that tells the user to switch back to the App/browser. I need to automate the switch back to my App. I know that the Venmo App supports providing a scheme to deep link back into the requestor App but I cannot find it in their documentation.

I can deep link into the venmo app using a simple javascript call to window.open() with url:

https://venmo.com/go/purchase?facilitator=BT&intent=Continue&resource_id=${resId}=&merchant_id=${merchId}&environment=SANDBOX

I see that instead the when I use the web redirect approach it uses some x-{status} parameters like x-success (not sure if helpful):

https://venmo.com/braintree/checkout?resource_id=${resId}I%3D&x-success=${appScheme}%3A%2F%2F${appOrigin}%2F%23venmoSuccess%3D1&x-cancel={appScheme}%3A%2F%2F{appOrigin}%2F%23venmoCancel%3D1&x-error=${appScheme}%3A%2F%2F${appOrigin}%2F%23venmoError%3D1&braintree_merchant_id=${merchId}&braintree_access_token=access_token%24sandbox&braintree_environment=sandbox&braintree_sdk_data=${someData}