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U.S. Bank Europe DAC. Registered in Ireland – Number 418442..  Registered Office: Block F1, Cherrywood Business Park, Dublin 18, D18 W2X7, Ireland.
U.S. Bank Europe DAC, trading as Elavon Merchant Services, is regulated by the Central Bank of Ireland.
 
U.S. Bank Europe DAC. Registered in Ireland with Companies Registration Office. The liability of the member is limited. United Kingdom branch registered in England and Wales under the number BR022122.
U.S. Bank Europe DAC, trading as Elavon Merchant Services, is a credit institution authorised and regulated by the Central Bank of Ireland.  Authorised by the Prudential Regulation Authority.  Subject to regulation by the Financial Conduct Authority and limited regulation by the Prudential Regulation Authority.  Details about the extent of our regulation by the Prudential Regulation Authority are available from us on request.

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The merchant can include an invoice number in a transaction to track related transactions.



:::::notice{note}

This feature is only available if enabled in Converge. Refer to *Get Converge account information* for more information.
:::::

## Code samples

### CWS 

#### Request

| Property | Description |
| --- | --- |
| parameters JSONObject required | All relevant parameters for tokenization. |
| invoiceNumber string optional | Invoice number |


#### Example (Request)

```json
{
 "method" : "startPaymentTransaction",
 "requestId" : "1578283620",
 "targetType" : "paymentGatewayConverge",
 "version" : "1.0",
 "parameters" : {
 "paymentGatewayId" : "d5b9ea11-a9a7-4888-8458-2f609656579f",
 "transactionType" : "SALE",
 "tenderType" : "CARD",
 .....
 "invoiceNumber" : "T01",
 .....
 }
}
```

### Java 

```java
private void setInvoiceNumber(ECLTransactionInterface transaction,
 GetCardTransactionPropertiesDialog getCardTransactionPropertiesDialog)
{
 String invoiceNumber = getCardTransactionPropertiesDialog.getInvoiceNumber();
 if (null != invoiceNumber)
 {
 transaction.setInvoiceNumber(invoiceNumber);
 }
}

```

### Objective-C 

#### Request

```objc
id<ECLTransactionProtocol> resultingTransaction;

//initilize resultingTransaction with a specific protocol such as ECLCurrencyTransactionProtocol or ECLStandaloneRefundTransactionProtocol
...

if ([_invoiceNumber.text length] > 0) 
{
 [_resultingTransaction setInvoiceNumber:_invoiceNumber.text];
}
```

### C\# 

#### Request

```c#
PaymentArgs paymentArgs = new PaymentArgs();

...

paymentArgs.invoiceNumber = tb_InvoiceNum.Text;
```

Invoice number

Alliance Offers

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Invoice Number