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Sandbox mode card is always declined using Advanced Integration v2 .net / html example #185

@henry-95

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@henry-95

I have compiled the .net / html example of the advanced integration v2 and running the client and server locally on my PC with a valid sandbox client id and secret, but my test card is being declined. I have not made any changes to the code. Is this setup no longer working? The processor response code is always "PPAR".

If you setup the .net example and make a purchase in sandbox mode with a sandbox card does it return status: "DECLINED" for you as well?

Here is the response object in my event log:

{ "id": "6JP29252C6226110E", "status": "COMPLETED", "payment_source": { "card": { "name": "xxxxxx", "last_digits": "4467", "expiry": "xxxxxx", "brand": "VISA", "available_networks": [ "VISA" ], "type": "CREDIT", "bin_details": { "bin": "xxxxxx", "issuing_bank": "Baxter Credit Union", "bin_country_code": "US" } } }, "purchase_units": [ { "reference_id": "default", "payments": { "captures": [ { "id": "2RU54950G4173603R", "status": "DECLINED", "amount": { "currency_code": "USD", "value": "100.00" }, "final_capture": true, "seller_protection": { "status": "NOT_ELIGIBLE" }, "seller_receivable_breakdown": { "gross_amount": { "currency_code": "USD", "value": "100.00" }, "paypal_fee": { "currency_code": "USD", "value": "3.49" }, "net_amount": { "currency_code": "USD", "value": "96.51" } }, "links": [ { "href": "https://api.sandbox.paypal.com/v2/payments/captures/2RU54950G4173603R", "rel": "self", "method": "GET" }, { "href": "https://api.sandbox.paypal.com/v2/checkout/orders/6JP29252C6226110E", "rel": "up", "method": "GET" } ], "create_time": "2025-05-12T16:51:25Z", "update_time": "2025-05-12T16:51:25Z", "network_transaction_reference": { "network": "VISA" }, "processor_response": { "response_code": "PPAR" } } ] } } ], "links": [ { "href": "https://api.sandbox.paypal.com/v2/checkout/orders/6JP29252C6226110E", "rel": "self", "method": "GET" } ] }

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