贝宝付款API电子邮件主题错误

Question

我向Paypal发送API请求以支付我的一个用户，他收到了电子邮件通知，但主题行不是我向API提供的内容。

收到的电子邮件通知

COMPANYNAME has sent you a payment via .

payload = {
        'sender_batch_header': {
            'sender_batch_id': str(self.sender_batch_id),
            'recipient_type': 'EMAIL',
            'email_subject': 'COMPANYNAME has sent your CashBack!',
            'email_message': 'Congratulations! Our records show you '
                             'earned cash back. You can receive your payment'
                             ' now via Paypal. If you have any '
                             'questions, please feel free to '
                             'reach out to us'
        },
        'items': []
    }
    response = requests.post(url, json=payload, headers=headers)

根据贝宝（Paypal）文档“ email_subject”应该是收到的电子邮件主题，但是您会发现它有所不同。

文档链接：https://developer.paypal.com/docs/api/payments.payouts-batch/v1/#payouts_post