---
search:
  tags:
    - Billing
    - GET
seo:
  description: >-
    Poll this to find approved invoices whose requested invoice date has come,
    oldest… Reference for the GET /v1/billing/send-queue endpoint in the Hydda
    One API.
sidebar:
  label: List approved invoices ready to send
  badge: GET
title: List approved invoices ready to send
type: openapi-operation
---
Poll this to find approved invoices whose requested invoice date has come, oldest approval first. Each item holds everything needed to issue the invoice in your ERP. An invoice stays on the queue until you report it sent or failed, so a retry after a crash returns it again. Refused with 400 when the organization has no invoicing integration that handles sending.

`GET /v1/billing/send-queue`