Braintree: 91508 Cannot Determine Payment Method

What This Means

Braintree will not approve the transaction because no payment method can be found to charge, either directly (by credit card or PayPal) or indirectly (by customer_id and payment_id).

Suggested Next Steps

Search for the customer in the Braintree Vault to confirm that this customer's billing profile can or cannot be found.
- If a new payment profile can be found, you can edit the Scheduled Order and create a new payment method for this Scheduled Order by copying the customer's billing information into their Scheduled Order (see the section "Adding A New Payment Method for Your Customer?" below).
Contact the customer to have them add a new payment method and add it to their Scheduled Order.
Once a new payment method is added to the Scheduled Order, the Scheduled Order should be processed with the new payment method.

Adding A New Payment Method for Your Customer?

If you are adding a new payment method for your customer directly to your payment gateway (manually), ensure that you edit the failed Scheduled Order, add a new payment method, and copy the required billing information from your payment gateway directly to their Scheduled Order including:

Gateway CustomerId
Gateway PaymentId
Billing Address
Payment Method Description (optional, but strongly suggested because it is used to display the payment method to your customer)

After Resolving The Issue

Once this issue is resolved, you should use the action to Restart Processing the Failed Scheduled Order.