# Apply a Payment

**POST /o/op/1/pay**

Add a payment to an existing receipt.


## Servers
- Demo URL: https://api.trial.lsk.lightspeed.app (Demo URL)
- Production URL: https://api.lsk.lightspeed.app (Production URL)


## Authentication methods
- O auth2


## Parameters



### Body: application/json (object)

- **iKaccountId** (integer(int64))

- **iKaccountIdentifier** (string)
  The ID of the account to apply this payment to.
- **thirdPartyPaymentReference** (string)
  A unique external reference provided for this order. This value will be sent back in the webhook.
- **endpointId** (string)
  Endpoint ID for a unique webhook that has been created using [the webhook endpoint](https://api-docs.lsk.lightspeed.app/operation/operation-apecreatewebhookoo).
- **businessLocationId** (integer(int64))
  The unique identifier for the business location.
- **taskTtlInMs** (integer(int32))
  Maximum time to attempt delivery of this payment to the POS. In milliseconds. The minimum value is 60000ms (1 minute).
- **staffId** (integer(int64))
  The ID of the employee responsible for this payment.
- **deviceId** (integer(int64))
  POS device to specifically receive this payment. If left null then all POS devices may receive the payment but only one will process it.
- **paymentMethod** (string)
  Payment method code as configured by the merchant.
- **paymentAmount** (number)
  The total amount of the payment without tips.
- **tipAmount** (number)
  The tip amount, if any.
- **targetPrinterProfileId** (integer(int64))
  The printer profile id to use for printing the receipt for this payment. If not provided, the default active printer profile for the business location will be used.


## Responses
### 200
accepted

#### Body: application/json (object)
- **status** (string)
  The response.

### 400
Bad Request

#### Body: */* (object)
- **timestamp** (string(date-time))
  The date and time at which the error occurred, in UTC.
- **status** (integer)
  The HTTP status code indicating the type of error.
- **error** (string)
  A short description of the HTTP status code meaning.
- **message** (string)
  A detailed message describing the error, including any specific details about the request that led to the error.
- **path** (string)
  The request path where the error occurred.


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