---
agentTools:
  projectIndex: https://developer.bill.com/llms.txt
---

# Webhook notification payload improvements

We have made a set of improvements in the BILL webhook notification payloads for consistency with other BILL v3 API responses.

* The `createdTime` and `updatedTime` value format is now consistent with the format in other BILL v3 API responses. The format is `yyyy-MM-dd'T'HH:mm:ss.SSSX`. For example, `2024-12-15T22:53:15.127+00:00`.
* In the notification payloads for bills, the `invoiceNumber` and `invoiceDate` information is now in the `invoice` object. This matches the format of the `/v3/bills` API response.

See [Webhooks](https://developer.bill.com/v3/docs/webhooks) for more information.