> Portal Navigation: > > - Append `.md` to any URL under `https://dev.wix.com/docs/` to get its markdown version. > - Pages are either content pages (article or reference text) or menu pages (a list of links to child pages). > - To get a menu page, truncate any URL to a parent path and append `.md` (e.g. `https://dev.wix.com/docs/sdk.md`, `https://dev.wix.com/docs/sdk/core-modules.md`). > - Top-level index of all portals: https://dev.wix.com/docs/llms.txt > - Full concatenated docs: https://dev.wix.com/docs/llms-full.txt # Method name: voidInvoice(id: IdAndVersion) # Method package: wixBillingBackend # Method menu location: wixBillingBackend --> Invoices --> voidInvoice # Method Link: https://dev.wix.com/docs/velo/apis/wix-billing-backend/invoices/void-invoice.md # Method Description: Voids an invoice. The `voidInvoice()` function returns a Promise that resolves when the invoice with the specified ID is voided. Calling `voidInvoice()` on a draft invoice causes an error. # Method Code Examples: *** Note: do not assume any prop names or enum values other than the ones in the example. ## Void invoice ```javascript import { Permissions, webMethod } from 'wix-web-module'; import { invoices } from 'wix-billing-backend'; export const voidInvoice = webMethod(Permissions.Anyone, (id) => { return invoices.getInvoice(id) .then((result) => { return invoices.voidInvoice(result.id); }); }); ``` ## Get the invoice version and void the invoice ```javascript import { Permissions, webMethod } from 'wix-web-module'; import { invoices } from 'wix-billing-backend'; export const voidInvoice = webMethod(Permissions.Anyone, (id, version) => { const idAndVersion = { "id": id, "version": version }; return invoices.getInvoice(id) .then((result) => { return invoices.voidInvoice(idAndVersion); }); }); ``` ---