Returns full details of a single invoice, including all line items (service items).

The invoice must belong to the authenticated account, otherwise a 404 is returned.

Line Items

The items array contains the individual services billed on this invoice, each with:

• service name, quantity, unit, unit price
• net and gross amounts, VAT percent
• service period (serviceDate / expiration)
• optional notes (e.g. package name, billing period)

Comment

The comment field is the concatenation of bh_comment_1 and bh_comment_2 from the invoice header.