Retrieves the Invoice specified by this unique identifier, optionally including nested data sets.
An Invoice represents a bill sent from one company to another. The creator of the invoice is identified by the CompanyId field, and the recipient of the invoice is identified by the CustomerId field. Most invoices are uniquely identified both by a Lockstep Platform ID number and a customer ERP "key" that was generated by the system that originated the invoice. Invoices have a total amount and a due date, and when some payments have been made on the Invoice the TotalAmount and the OutstandingBalanceAmount may be different.
To call this endpoint, you must have one of these roles: