Credit a return on a paid invoice

Verifier checks

Score 0.50 · 6 of 12 checks passed

• Exactly one credit note0 credit notes
• Against the February brand-book invoice INV-1039
• Credits 6 copies of the Printed Brand Book line — nothing else
• Credit total $280.58 (invoiced price less the 10% volume discount, plus 8.25% tax)$0.00
• Issued — it is under the $1,000.00 approval limit
• Summit holds $280.58 of new credit (the invoice was already paid)$0.00
• INV-1039 was not voidedpaid
• January's brand-book invoice INV-1034 untouched
• No new invoice was created
• No other invoice was changed
• No collateral changes outside what the task requires
• Finished within the step budget (60)2 steps

Tool calls

2 calls, in order. Results are shortened to 2,400 characters.

1. 1.list_invoicesread

   {"customer_id":"Summit Outdoor Co.","status":"paid"}

   {"as_of":"2026-03-09","count":3,"invoices":[{"invoice_id":"INV-1025","customer_id":"c-summit","customer_name":"Summit Outdoor Co.","status":"paid","issue_date":"2025-10-16","due_date":"2025-11-15","days_overdue":0,"po_number":"SO-2242","total":"$2338.63","total_cents":233863,"balance":"$0.00","balance_cents":0,"last_reminder_on":null,"late_fee_applied":false},{"invoice_id":"INV-1034","customer_id":"c-summit","customer_name":"Summit Outdoor Co.","status":"paid","issue_date":"2026-01-06","due_date":"2026-02-05","days_overdue":0,"po_number":"SO-2280","total":"$1039.20","total_cents":103920,"balance":"$0.00","balance_cents":0,"last_reminder_on":null,"late_fee_applied":false},{"invoice_id":"INV-1039","customer_id":"c-summit","customer_name":"Summit Outdoor Co.","status":"paid","issue_date":"2026-02-02","due_date":"2026-03-04","days_overdue":0,"po_number":"SO-2298","total":"$2159.59","total_cents":215959,"balance":"$0.00","balance_cents":0,"last_reminder_on":null,"late_fee_applied":false}]}

2. 2.list_itemsreaderror

   {"item_ids":["Printed Brand Book"]}

   unknown argument: item_ids