--- name: "invoices_void" area: "invoices" title: "Void a quote or invoice" price: "$0.01" method: "POST" url: "https://api.conecto.chat/v1/tools/invoices_void" mcp_server: "https://api.conecto.chat/mcp/invoices" auth: "Authorization: Bearer " docs_url: "https://conecto.chat/tools/invoices/invoices_void" --- # Void a quote or invoice (`invoices_void`) Voids a document: a sent one keeps its number but can no longer be paid or accepted; a draft is discarded. Void a document. A sent one keeps its number (numbers stay gapless) but can no longer be paid, accepted or viewed; a draft is simply discarded. Refused while payments are recorded on it, on an invoice with credit notes and on a credit note (correct those with another credit note or a new invoice), and on an invoice that may be in the customer's hands (emailed, opened, or its PDF downloaded through a link): that one is cancelled with a credit note for all of it, as the law asks. An invoice posted to the books is reversed there. Price: $0.01 a call. A call that fails costs nothing. ## Use it when A quote or a draft is no longer wanted, or an invoice was numbered by mistake and never reached the customer. - For an invoice the customer may have (emailed, opened or its PDF downloaded), or one wrong in part, use [invoices_create_credit_note](https://conecto.chat/tools/invoices/invoices_create_credit_note.md). ## Say this to your agent > Void the invoice for Café Lotte. They cancelled the order. ## Inputs | Name | Type | Required | Description | Allowed values | Default | |---|---|---|---|---|---| | `invoice_id` | string | yes | The invoice_id invoices_create returned (quotes and credit notes have one too). Exactly 36 characters. | | | | `reason` | string | no | Up to 500 characters. | | | ## Example Written for Hansen & Voss, a restaurant-equipment wholesaler in Hamburg with 60 staff. MCP: call `invoices_void` on the MCP server `https://api.conecto.chat/mcp/invoices` with these arguments: ```json { "invoice_id": "2d9c4e7b-1a3f-4c5d-8e6f-0b1a2c3d4e5f", "reason": "Order cancelled by the customer" } ``` REST: ```bash curl https://api.conecto.chat/v1/tools/invoices_void \ -H "Authorization: Bearer $CONECTO_KEY" \ -H "Content-Type: application/json" \ -d '{"invoice_id": "2d9c4e7b-1a3f-4c5d-8e6f-0b1a2c3d4e5f", "reason": "Order cancelled by the customer"}' ``` ## Response ```json { "call_id": "5f0c8a2e-3b7d-4c1e-9a64-2d8e1f7b0c93", "tool": "invoices_void", "status": "succeeded", "replayed": false, "cost_usd": "$0.01", "balance_usd": "$19.75", "result": { "invoice": { "invoice_id": "2d9c4e7b-1a3f-4c5d-8e6f-0b1a2c3d4e5f", "kind": "invoice", "number": "INV-0042", "status": "void", "currency": "EUR", "issue_date": "2026-10-14", "due_date": "2026-10-28", "overdue": false, "days_overdue": 0, "customer": { "contact_id": null, "company_id": null, "name": "Hotel Elbblick GmbH", "email": "lukas.meyer@hotel-elbblick.example", "address": "Elbchaussee 120\n22763 Hamburg", "tax_id": "", "country": null }, "total": "13887.30", "total_formatted": "€13,887.30", "amount_paid": "0.00", "balance": "13887.30", "balance_formatted": "€13,887.30", "public_url": null, "created_at": "2026-10-14T08:00:00+00:00", "sent_at": "2026-10-14T08:00:00+00:00", "credited": "0.00" }, "note": "INV-0042 stays used, so the numbers have no gap." } } ``` `result`: The document, now void. ## Errors | Code | Status | When | Fix | |---|---|---|---| | `not_found` | 404 | No quote or invoice of the business has that invoice_id. | Find it with invoices_list and use its invoice_id. | | `already_void` | 409 | It is void already. | Nothing to do. | | `has_payments` | 409 | Payments are recorded on it. | Record a refund (a negative payment) first if the money went back. | | `already_converted` | 409 | The quote became an invoice. | Void that invoice instead. | | `not_voidable` | 409 | It is a credit note, which stays once issued. | To charge the customer again, send a new invoice. | | `has_credit_notes` | 409 | The invoice has credit notes. | Credit what is left of it with invoices_create_credit_note. | | `reached_customer` | 409 | The invoice was emailed to the customer, opened on its page or its PDF downloaded through a link, so voiding it could leave them an invoice whose VAT is still owed. | Cancel it with invoices_create_credit_note (no lines or amount: all of it), which they get too. | | `before_start` | 409 | The date is before the books start. | Use a later date, or set an earlier start with books_setup. | | `period_locked` | 409 | The books are locked for that date. | Use a later date, or unlock the period with books_lock. | | `no_role` | 409 | The books have no account for a role the posting needs. | Give an account that role with books_save_accounts. | The refusals every tool can give (401 key, 402 balance, 429 limits) are on the errors page: https://conecto.chat/docs/errors.md ## Related - [invoices_set_profile](https://conecto.chat/tools/invoices/invoices_set_profile.md): Sets the business details on quotes and invoices: name, country, address, tax ID, logo, terms, tax, numbering, how to pay and legal notes. $0.001 a call. - [invoices_get_profile](https://conecto.chat/tools/invoices/invoices_get_profile.md): The business details on quotes and invoices, the next numbers, and what is missing before documents can be sent. Free up to 1,000,000 reads a month. - [invoices_connect_stripe](https://conecto.chat/tools/invoices/invoices_connect_stripe.md): Connects the business's own Stripe account with a restricted key, so invoices can be paid online; the money goes straight to the business. $0.001 a call. - [invoices_create](https://conecto.chat/tools/invoices/invoices_create.md): Creates a draft quote or invoice: the customer, the lines, the currency and the dates. $0.01 a call. - [invoices_update](https://conecto.chat/tools/invoices/invoices_update.md): Changes a draft quote or invoice; customer and lines replace the old ones. $0.01 a call. - [invoices_send](https://conecto.chat/tools/invoices/invoices_send.md): Sends a draft: it gets the next number, its PDF is made, and the customer is emailed a link to view, pay or accept it. $0.10 a call. - [invoices_get](https://conecto.chat/tools/invoices/invoices_get.md): One quote or invoice in full, by invoice_id or number: lines, totals, taxes, payments, history, its page and a fresh PDF link. Free up to 1,000,000 reads a month. - [invoices_list](https://conecto.chat/tools/invoices/invoices_list.md): Quotes and invoices, newest first, by kind, status (also overdue, unpaid and expired), customer and issue date. Free up to 1,000,000 reads a month. - [invoices_convert_quote](https://conecto.chat/tools/invoices/invoices_convert_quote.md): Turns an accepted quote into a draft invoice with the same customer and lines. $0.01 a call. - [invoices_record_payment](https://conecto.chat/tools/invoices/invoices_record_payment.md): Records money received against a sent invoice, or a refund; the invoice becomes partially paid or paid. $0.01 a call. - [invoices_record_prepayment](https://conecto.chat/tools/invoices/invoices_record_prepayment.md): Records a customer's deposit before there is an invoice, like Xero's prepayments; it waits as their credit, with its VAT owed at once. $0.01 a call. - [invoices_use_credit](https://conecto.chat/tools/invoices/invoices_use_credit.md): Puts a customer's credit on their invoice, like Xero's allocate credit, or pays it back to them. $0.01 a call. - [invoices_list_credits](https://conecto.chat/tools/invoices/invoices_list_credits.md): Lists customers' credits, deposits and overpayments, with what is left on each. Free up to 1,000,000 reads a month. - [invoices_remind](https://conecto.chat/tools/invoices/invoices_remind.md): Emails the customer a reminder about a sent invoice with a balance, at most once a day. $0.02 a call. - [invoices_remind_overdue](https://conecto.chat/tools/invoices/invoices_remind_overdue.md): Emails a reminder about every invoice at least some days overdue, the longest overdue first. $0.02 per reminder sent. - [invoices_set_expected_date](https://conecto.chat/tools/invoices/invoices_set_expected_date.md): Notes the day a customer says they will pay an invoice, so the cash flow forecast counts the money then, even when the invoice is overdue. Free. - [invoices_create_credit_note](https://conecto.chat/tools/invoices/invoices_create_credit_note.md): Corrects a sent invoice with a numbered credit note: all of it, some of its lines or an amount, emailed like an invoice. $0.10 a call. - [invoices_save_repeating](https://conecto.chat/tools/invoices/invoices_save_repeating.md): Makes an invoice again every so many weeks, months or years, drafted or sent on its day, with [Month] and [Year] filled in, like Xero's repeating invoices. $0.001 a call. - [invoices_list_repeating](https://conecto.chat/tools/invoices/invoices_list_repeating.md): Lists the repeating invoices: who each is for, how often, the next dates, and what each made. Free up to 1,000,000 reads a month. - [invoices_delete_repeating](https://conecto.chat/tools/invoices/invoices_delete_repeating.md): Stops a repeating invoice for good; the invoices it made stay. Free. - [invoices_statement](https://conecto.chat/tools/invoices/invoices_statement.md): Makes a customer statement, outstanding or activity, as a PDF, and emails it when asked, like Xero's statements. $0.05 a call. - [invoices_summary](https://conecto.chat/tools/invoices/invoices_summary.md): What customers owe, per currency: outstanding, overdue and paid this month, and the quotes still open. Free up to 1,000,000 reads a month. - [invoices_report](https://conecto.chat/tools/invoices/invoices_report.md): Aged receivables on any day, or sales per customer for a period with the credit notes taken off. Free up to 1,000,000 reads a month.