---
url: >-
  https://acquirer-api-docs-v4-en.pingpongx.com/en/notes/api/services/InPersonPayments/gmc/settlement/index.md
description: >-
  The GMC serial settlement interface is used to trigger the POS device to
  perform batch settlement operations. It is typically called at the end of each
  business day to clear all transaction batches for the day. The bizContent
  field can be empty. After settlement, the POS device will print settlement
  vouchers.
---
# GMC Serial Settlement Interface

```apidef
endpoint: POST /onsiteAcquirer/gmc/settlement
name: GMC Serial Settlement Interface
```

The GMC serial settlement interface is used to trigger the POS device to perform batch settlement operations. It is typically called at the end of each business day to clear all transaction batches for the day. The bizContent field can be empty. After settlement, the POS device will print settlement vouchers.

### Request Example

```json
{
  "accId": "PPX_ACC_202312001",
  "clientId": "PPX_MCH_20230001",
  "signType": "SHA256",
  "sign": "9f86d081884c7d659a2feaa0c55ad015a3bf4f1b2b0b822cd15d6c15b0f00a08",
  "version": "1.0",
  "event": "CALCULATE",
  "requestTime": "1683533500000"
}
```