3.1.38 Invoice ID

An 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 adhere to the following nullability requirements:
  • InvoiceId MUST be null when the charge is not associated either with an invoice or with a pre-generated provisional invoice.
  • InvoiceId MUST NOT be null when the charge is associated with either an issued invoice or a pre-generated provisional invoice.
• InvoiceId MAY be generated prior to an invoice being issued.
• InvoiceId MUST be associated with the related charge and BillingAccountId when a pre-generated invoice or provisional invoice exists.

See Appendix: Grouping constructs for resources or services for details and examples of the different grouping constructs supported by FOCUS.

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