撤销转账 
商户通过转账接口发起付款后,在用户确认收款之前可以通过该接口撤销付款。该接口返回成功仅表示撤销请求已受理,系统会异步处理退款等操作,以最终查询单据返回状态为准。
| 请求参数 | 类型 | 描述 | 
|---|---|---|
| out_bill_no | string | 商户单号 | 
php
$instance->v3->fundApp->mchTransfer->transferBills->outBillNo->_out_bill_no_->cancel->postAsync([
  'out_bill_no' => 'plfk2020042013',
])
->then(static function(\Psr\Http\Message\ResponseInterface $response) {
  print_r(json_decode((string) $response->getBody(), true));
})
->wait();php
$instance->chain('v3/fund-app/mch-transfer/transfer-bills/out-bill-no/{out_bill_no}/cancel')->postAsync([
  'out_bill_no' => 'plfk2020042013',
])
->then(static function(\Psr\Http\Message\ResponseInterface $response) {
  print_r(json_decode((string) $response->getBody(), true));
})
->wait();php
$instance['v3/fund-app/mch-transfer/transfer-bills/out-bill-no/{out_bill_no}/cancel']->postAsync([
  'out_bill_no' => 'plfk2020042013',
])
->then(static function(\Psr\Http\Message\ResponseInterface $response) {
  print_r(json_decode((string) $response->getBody(), true));
})
->wait();php
$response = $instance->v3->fundApp->mchTransfer->transferBills->outBillNo->_out_bill_no_->cancel->post([
  'out_bill_no' => 'plfk2020042013',
]);
print_r(json_decode((string) $response->getBody(), true));php
$response = $instance->chain('v3/fund-app/mch-transfer/transfer-bills/out-bill-no/{out_bill_no}/cancel')->post([
  'out_bill_no' => 'plfk2020042013',
]);
print_r(json_decode((string) $response->getBody(), true));php
$response = $instance['v3/fund-app/mch-transfer/transfer-bills/out-bill-no/{out_bill_no}/cancel']->post([
  'out_bill_no' => 'plfk2020042013',
]);
print_r(json_decode((string) $response->getBody(), true));| 返回字典 | 类型 | 描述 | 
|---|---|---|
| out_bill_no | string | 商户单号 | 
| transfer_bill_no | string | 微信转账单号 | 
| state | string | 单据状态 | 
| update_time | string | 最后一次单据状态变更时间 | 
参阅 官方文档