# InvoicePaymentByNumber: Fortnox Invoice Payment by Number
Retrieve a single invoice payment
- Catalog: `Fortnox`
- Schema: `InvoicePayments`
- Label: Invoice Payment by Number
This is a read-only table function. The Fortnox API may not support changing the data or the Invantive UniversalSQL driver for Fortnox does not cover it. In the latter case, please use the table NativePlatformScalarRequests to upload data to the Fortnox API.
## Parameters of Table Function
The following parameters can be used to control the behaviour of the table function `InvoicePaymentByNumber`. A value must be provided at all times for required parameters, but optional parameters in general do not need to have a value and the execution will default to a pre-defined behaviour. Values can be specified by position and by name. In both cases, all parameters not specified will be evaluated using their default values.
Value specification by position is done by listing all values from the first to the last needed value. For example: a `select * from table(value1, value2, value3)` on a table with four parameters will use the default value for the fourth parameter and the specified values for the first three.
Value specification by name is done by listing all values that require a value. For example with `select * from table(name1 => value1, name3 => value3)` on the same table will use the default values for the second and fourth parameters and the specified values for the first and third.
| Name | Data Type | Required | Default Value | Documentation |
|---|:---:|:---:|:---:|---|
| `Number` | `` | ☑ | | identifies the invoice payment |
| `financialyear` | `` | ☐ | | Selects what financial year that should be used (does not work on every table). |
| `financialyeardate` | `` | ☐ | | Selects by date, what financial year that should be used (does not work on every table). |
| `fromdate` | `` | ☐ | | Defines a selection based on a start date. Only available for invoices, orders, offers, vouchers and supplierinvoices (does not work on every table). |
| `lastmodified` | `` | ☐ | | Retrieves all records since the provided timestamp (does not work on every table). |
| `todate` | `` | ☐ | | Defines a selection based on an end date. Only available for invoices, orders, offers, vouchers and supplierinvoices (does not work on every table). |
## Columns of Table Function
The columns of the table function `InvoicePaymentByNumber` are shown below. Each column has an SQL data type.
| Name | Data Type | Label | Required | Documentation |
|---|:---:|---|:---:|---|
| `InvoicePayment_AmountCurrency` | `double` | Invoice Payment Amount Currency | ☐ | |
| `InvoicePayment_Amount` | `double` | Invoice Payment Amount | ☐ | |
| `InvoicePayment_Booked` | `char` | Invoice Payment Booked | ☐ | |
| `InvoicePayment_CurrencyRate` | `double` | Invoice Payment Currency Rate | ☐ | |
| `InvoicePayment_CurrencyUnit` | `double` | Invoice Payment Currency Unit | ☐ | |
| `InvoicePayment_Currency` | `varchar2(3)` | Invoice Payment Currency | ☐ | |
| `InvoicePayment_ExternalInvoiceReference1` | `varchar2` | Invoice Payment External Invoice Reference 1 | ☐ | |
| `InvoicePayment_ExternalInvoiceReference2` | `varchar2` | Invoice Payment External Invoice Reference 2 | ☐ | |
| `InvoicePayment_InvoiceCustomerName` | `varchar2` | Invoice Payment Invoice Customer Name | ☐ | |
| `InvoicePayment_InvoiceCustomerNumber` | `varchar2` | Invoice Payment Invoice Customernumber | ☐ | |
| `InvoicePayment_InvoiceDueDate` | `datetime` | Invoice Payment Invoice Duedate | ☐ | |
| `InvoicePayment_InvoiceNumber` | `int32` | Invoice Payment Invoice Number | ☐ | |
| `InvoicePayment_InvoiceOCR` | `varchar2` | Invoice Payment Invoice Ocr | ☐ | |
| `InvoicePayment_InvoiceTotal` | `varchar2` | Invoice Payment Invoice Total | ☐ | |
| `InvoicePayment_ModeOfPaymentAccount` | `int32` | Invoice Payment Mode of Payment Account | ☐ | |
| `InvoicePayment_ModeOfPayment` | `varchar2` | Invoice Payment Mode of Payment | ☐ | |
| `InvoicePayment_Number` | `varchar2` | Invoice Payment Number | ☐ | |
| `InvoicePayment_PaymentDate` | `datetime` | Invoice Payment Date | ☐ | |
| `InvoicePayment_Source` | `varchar2` | Invoice Payment Source | ☐ | |
| `InvoicePayment_VoucherNumber` | `int32` | Invoice Payment Voucher Number | ☐ | |
| `InvoicePayment_VoucherSeries` | `varchar2` | Invoice Payment Voucher Series | ☐ | |
| `InvoicePayment_VoucherYear` | `int32` | Invoice Payment Voucher Year | ☐ | |
| `InvoicePayment__url` | `varchar2` | Invoice Payment URL | ☐ | |