6 description: Internal identifier for the incoide. Generated on POST
9 description: Invoice number assigned by the vendor
12 description: Internal identifier for the vendor
18 description: Date of shipping
24 description: Date of billing
27 description: If the invoice is closed
31 description: Invoice close date (only when the invoice is closed)
36 description: Shipping cost
37 shipping_cost_budget_id:
41 description: Shipping cost linking to budget
42 additionalProperties: false