Receiving a 803 PaymentDetail not found response after trying to do a recurring payment, means the stored card details (token), indicated by the recurringDetailReference, is not available for this shopperReference.

This can have several causes:

• You are using a recurringDetailReference that doesn't exist (also referred to as the storedPaymentMethodId)
• If you are using our classic integration, it might be caused by a contract type which is not configured for this recurringDetailReference 

To check which contract types are stored for a specific shopperReference, make a call to the /paymentMethods endpoint (Checkout API integration) or the /listRecurringDetails endpoint (Direct API integration).