ap_imports group. Vendor reads are also in core. Writes are business mode.
Use vendor credit, not “credit note”. Prefer external_id on imports.
REST guide: Importing bills / AP data.
Sequence
1
Vendors
Reads:
list_vendors, get_vendor. Writes: create_vendor, update_vendor, archive_vendor (destructive), unarchive_vendor, merge_vendors (destructive).2
Import bills
list_bills, get_bill, import_bills (POST …/bills/bulk), update_bill. Destructive: void_bill, delete_bill.3
Payments, credits, refunds, payouts
Bill payments: list/get/
import_bill_payments/update/delete_bill_payment. Vendor credits: list/get/create/update/delete_vendor_credit. Vendor refunds and vendor payouts similarly, including record_vendor_refund_payment.Expenses
create_expense (POST …/expenses) creates a paid-on-receipt expense (bill + payment). Prefer external_id as the idempotency key. See Create expense.
Search phrases: bills, bill payments, vendor credit, vendor refunds, expenses, vendor payouts.