---
title: "Add Publisher"
url: https://docs.catalyst.zoho.com/en/tutorials/invoice-notifier/python/configure-publisher/
description: "Create an Event Driven Architecture to automate invoice updates from Zoho Books to Zoho Cliq using Event Functions and Catalyst Signals."
last_updated: 2026-08-17T12:16:04Z
service: All Services
type: tutorial
related_links:
  - name: "Publishers"
    url: /en/signals/help/publishers/key-aspects/
---

# Add Publisher

Let us start by setting up a [**Publisher**](https://docs.catalyst.zoho.com/en/signals/help/publishers/key-aspects/) in the *InvoiceNotifier* project. This Publisher will listen for **Invoice Updated** events from [**Zoho Books**](https://www.zoho.com/in/books/) and forward them to [**Catalyst Signals**](https://docs.catalyst.zoho.com/en/signals).

Follow these steps to configure the Publisher:

1. Navigate to the **Catalyst Signals** section in the Catalyst Console and click **Start Exploring**.
![Explore Signals](https://catalyst-docs-development.zohostratus.in/images/tutorials/invoice-notifier/explore.webp) 

2. Go to **Publishers** and click **Create Publisher**. 
![Create a Publisher](https://catalyst-docs-development.zohostratus.in/images/tutorials/invoice-notifier/create-pub.webp) 

3. From the list of available Zoho Services, select **Zoho Books**.
![Select Zoho Books](https://catalyst-docs-development.zohostratus.in/images/tutorials/invoice-notifier/zoho-books.webp) 

4. You will be taken to a configuration page. Fill in the required details:
    - Set the **Publisher Name** and **API Name** as Zylker. 
    - Select the desired Zoho Books org from the **Organization** dropdown.
      It will list only the organizations linked to the same email address you use to access the Catalyst Console. 
![Configure Zoho Books Publisher](https://catalyst-docs-development.zohostratus.in/images/tutorials/invoice-notifier/pub-config.webp) 

5. Enable **Event Ordering** to ensure that events are delivered in the same order they are received.
![Enable Event Ordering](https://catalyst-docs-development.zohostratus.in/images/tutorials/invoice-notifier/event-ordering.webp) 

6. Click **Save** to complete Setup and **Authorize** to use data from Zoho Books. 
![Authourize Zoho Books](https://catalyst-docs-development.zohostratus.in/images/tutorials/invoice-notifier/authorize.webp) 

Your Zoho Books Publisher is now ready to send invoice events to Catalyst Signals.