InvoiceHeader

This object represents a header that contains information about an invoice.

For an example, see: GetInvoiceDetails.

Name	Type	Description
`Id`	`String`	The unique identifier of the invoice.
`InvoiceNumber`	`String`	This property is only applicable if the invoice is in an approved status, `null` otherwise.
`CustomerId`	`String`	The customerId of the customer this invoice is for.
`CustomerCode`	`String`	The customerCode of the customer this invoice is for.
`CustomerClusterId`	`String`	The Id of the customer cluster, for the customer, that the invoice is assigned to.
`InvoiceStatus`	`InvoiceStatusEnum`	The invoice status. For a list of invoice statuses, see: InvoiceStatusEnum.
`BillingPeriodStart`	`String`	The start date of the billing period for this invoice.
`BillingPeriodEnd`	`String`	The end date of the billing period for this invoice.
`LastCalculationFinishDate`	`String`	The last time this invoice was calculated.
`InvoiceDate`	`String`	The date this invoice was created.
`BillingDate`	`String`	Invoice date assigned by user for ad hoc and billing period end date for period invoice.
`LastInvoiceRunDate`	`String`	The date the invoice was last updated.
`LastCalculatedTotal`	`Double`	The total value on this invoice.
`LastCalculatedTotalCurrency`	`String`	No Overview Available.
`LastCalculatedCostTotal`	`Double`	The total cost on this invoice.
`LastCalculatedCostTotalCurrency`	`String`	No Overview Available.
`InvoiceType`	`InvoiceType`	No Overview Available.
`ApprovalDate`	`String`	The date this invoice was approved.
`InvoiceReference`	`String`	No Overview Available.
`OutstandingAmount`	`Money`	No Overview Available.