| Type | FieldName |
| string | InvoiceNumber |
| Account | Account |
| string | Notes |
| DateTime? | TargetDate |
| DateTime? | TargetDateOneOff |
| DateTime? | TargetDateUsage |
| DateTime? | TargetDateMeasured |
| DateTime? | TargetDateRecurringInAdvance |
| DateTime? | TargetDateRecurringInArrears |
| DateTime | InvoiceDate |
| DateTime | DueDate |
| int | PaymentTerm |
| PaymentTerm | PaymentTermReference |
| Currency | Currency |
| DateTime? | Posted |
| CurrencyAmount | TotalAmount |
| CurrencyAmount | Subtotal |
| CurrencyAmount | Tax |
| InvoiceStatus | Status |
| Address | InvoiceAddress |
| Address | DeliveryAddress |
| CurrencyAmount | TotalRoundingAmount |
| InvoiceBatch | InvoiceBatch |
| List<InvoiceLine> | InvoiceLines |
| List<PaymentSettlement> | PaymentSettlements |
| string | YourReference |
| string | OurReference |
| string | YourOrderNumber |
| string | ReferenceNumber |
| Order | Order |
| List<InvoiceReminder> | InvoiceReminders |
| InvoiceType | InvoiceType |
| bool | TaxIncluded |
| string | SendMethod |
| decimal? | ExchangeRate |
| string | SettledNotes |
| PaymentMethodForInvoice | PaymentMethodForInvoice |
| List<OnlinePaymentLog> | OnlinePaymentLog |
| DocumentTemplate | InvoiceTemplate |
| bool | DisableAutomaticInvoiceReminder |
| string | UniqueOnlinePaymentKey |
| FinancialAccount | AccountsReceivable |
| InvoiceDeliveryMethod | InvoiceDeliveryMethod |
| string | OCRNumber |
| CurrencyAmount | SettledAmount |
| CurrencyAmount | UnsettledAmount |
| int? | DaysPastDue |
| CustomFields | CustomFields |
| string | CustomField(string |
| string | ExternalERPId |
| string | ExternalCRMId |