Actually I got it from the logs, the issue is that you have the currency set in the item list as USD and AUD in the overall amounts, you need to check the USD in the item details to AUD.
{ "intent":"sale", "payer":{ "payment_method":"paypal", "payment_method_type":"PAYPAL", "extended_payment_method_type":"PAYPAL" }, "transactions":[ { "amount":{ "total":"100", "currency":"AUD", "details":{ "subtotal":"75", "tax":"15", "shipping":"10", }, }, "description":"Transaction description.", "invoice_number":"209882", "related_resources":[ ], "item_list":{ "items":[ { "name":"Item Name", "sku":"sku", "price":"15", "currency":"USD", "quantity":"5", } ], } } ], "redirect_urls":{ "return_url":"http://localhost/xxxxxxxxxxxxxx.", "cancel_url":"http://localhost/xxxxxxxxxxxxxx }, }
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