Billing

Update invoice note

Updates only the note field of an invoice. This operation is allowed even for COMPLETE invoices.

Note: This endpoint returns 204 No Content on success. No invoice data is returned.

patch/v2/billing/invoices/{id}/note

Request

Base URL
https://app.ninjarmm.com (the document declares no server; this is the origin it was published from)
Auth
- HTTP bearer
- or API key in cookie sessionKey
TypeScript
https://skmtc.dev/ninjarmm/apis/ninjaone-public-api-2-0/docs/v2/billing/invoices/:id/note/patch.ts
A function with typed inputs. Its response is checked against the schema.

idinteger required

Invoice ID

invoiceNotestring nullable

The note to be associated with the invoice. Can be null to clear the note.

{
  "invoiceNote": "Payment received via wire transfer on January 15, 2026"
}

Invoice note updated successfully - No content returned

No recorded changes to this operation across all 4 revisions of this API.