Approve a vendor bill
Approves a vendor bill that is in status: pending_approval, transitioning it to status: approved
and making it eligible for payment via POST /ap-payments. The approval posts a GL journal
entry debiting the expense account and crediting Accounts Payable.
Requires purchasing:write scope.
Authorizations
API key issued per entity via Settings > Developers > API Keys.
Each key carries scopes (e.g. orders:read, products:write).
Bearer token format: Authorization: Bearer ark_live_ent_Test keys use ark_test_ent_. Both are issued per entity
via Settings > Developers > API Keys.
Path Parameters
Response
Approved vendor bill
A vendor invoice (AP). Posts to AP and inventory/expense on approval.
vendor_bill Sequential bill number per entity.
Vendor's invoice number.
draft, pending_approval, approved, rejected, paid, partially_paid, voided 
