3.4.12 Invoice ID

Invoice ID is an invoice-issuer-assigned identifier for an invoice encapsulating charges in the corresponding billing period for a given billing account. Invoices are commonly used for scenarios like tracking billing transactions, facilitating payment processes and for performing invoice reconciliation between charges and billing periods.

InvoiceId MUST adhere to the following requirements:

• InvoiceId MUST be of type String.
• InvoiceId MUST conform to StringHandling requirements.
• InvoiceId MUST NOT be null.
• InvoiceId MAY be generated prior to an invoice being issued.
• InvoiceId MUST uniquely identify the invoice as provided by the invoice issuer.

The invoice-issuer-assigned identifier for an invoice encapsulating charges in the corresponding billing period for a given billing account.