Building extensions #5: Creating custom connections for extensions

Building extensions #5: Creating custom connections for extensions

In our previous post, we discussed the significance of connections, identified their types, developed a predefined connection, and demonstrated how it can be integrated with Zoho Books using an example. In this post, we'll walk through the process of creating a custom connection using an example.

Custom connections facilitate the integration of applications with Zoho Books by aiding in configuring the required application's connection manually by providing application-specific details. Let's go over the steps involved in configuring custom connections in detail using a use case scenario.

Use case

Let's say an organization uses Zoho Books to manage its financial operations. To improve sales for the organization, one must contact and communicate with multiple clients, as well as check in with vendors on a regular basis to remain up to date on new products on the market, take demos, and assess whether the products need to be brought into the organization.

In these cases, it is best to schedule appointments with clients and vendors in order to conduct business in an organized manner. This can be easily performed by integrating an appointment scheduling software so appointments can be scheduled with a click.

For our demo purpose, let's consider Zoho Bookings as the appointment scheduling software. Since it is not available under the default list of services in predefined connections, let's create a custom connection to achieve this.

Steps to create a custom connection
  • Go to Sigma and access your workspace.
  • Enter the developer portal of the Zoho Books extension you're creating a connection for.
  • Navigate to the Build section and click Connections.
   
  • Click New Connection to create a new connection.
NotesNote: Alternatively, you can use the View All option under a connection type to see all the services under that particular connection type and begin creating connections.
     
  • Choose Custom Services and click Create Service.
   
  • Provide the details of the service.
➤ Enter a name for the service, and the service link name will be immediately filled in.
➤ Choose the authentication type that corresponds to the authentication mechanism supported by the service for which you are building the connection. These details will be available as part of the service's API documentation. For our example, we'll use OAuth2, because Zoho Bookings supports it as an authentication mechanism.         
  
➤ The remaining fields to be configured for the service differ based on the authentication type used. In our case, the parameter type is Header, and the grant type is Authorization Code.
   
➤ Please refer to the table below for the values that need to be configured in the remaining fields.
Note: Register the service in the Zoho Developer API console to get the client credentials.
  • Finally, click the Create Service button.
  
  • The service is created successfully. Click Create Connection to create a connection for this service.
  • Provide the connection details, select the scope, and click Create and Connect.
 
  • Proceed with the flow to accept the scopes and authorize the connection.
 

The connection is now authorized, and you'll be directed to the connection details page. This page will also contain sample code in both Deluge and JSON formats that can be used to utilize this connection as part of your extension components. Depending on which component you want to invoke the connection in, you can use the appropriate sample code format.

Additionally, a predefined connection for Zoho Books is created to perform operations on Zoho Books data to implement our use case. Get more information on predefined connections in our previous post.

Now, in accordance with our use case, let's create a custom button that includes this connection to schedule appointments (in Zoho Bookings) with clients and vendors using Zoho Bookings with a single click (from Zoho Books).
We require two custom fields for our logic, one for setting the meeting start time with the client or vendor, and the other to display the Bookings appointment calendar link once the meeting is scheduled.
  • Create custom fields for the Customers and Vendors module by selecting Preferences > Customers and Vendors > Field Customization > New Custom Field.
 
  • Next, create a custom button and include the logic to schedule an appointment.
  • Create a custom button for the Customers and Vendors module by selecting Preferences > Customers and Vendors > Custom Buttons > New.
InfoBook meeting custom button function Deluge code - Please find code snippet as an attachment in the post
  • In the above code, the Get Contacts API of Zoho Books is invoked through the InvokeURL method using the predefined connection to get the contact/customer details for whom the appointment has to be scheduled in Zoho Bookings. Refer to this post to get complete details on the parameters required to call the InvokeURL method.
  • From the API response, the required details are fetched from which the start time (custom field data) is formatted to the way required by the Zoho Bookings API.
  • Next, the Zoho Bookings API to get the service ID and staff ID are invoked consecutively through the InvokeURL method using the custom connection created.
  • The Book appointment API is used to schedule the appointment using the service ID, the staff ID obtained from the Zoho Bookings API, and customer details obtained previously via the Zoho Books API.
  • Finally, using the update contact Zoho Books API, the Zoho Bookings calendar URL is updated in the custom field created to display the calendar booking URL.
We've now completed the extension setup for our use case.

After testing and publishing the extension, as per our use case, you can book a meeting for a Zoho Books customer through Zoho Bookings and have your Zoho Bookings calendar reflected inside Zoho Books as well.

z
This is an example demonstration of the benefits of using a custom connection in a Zoho Books extension. This is a versatile use case that may even be used to schedule an internal meeting with your Zoho Books teammates who are working on a project. Similarly, this use case can be enhanced and implemented based on your needs.

We hope you found this information useful. Keep following us for more tips.

SEE ALSO

    • Recent Topics

    • Kaizen #210 - Answering your Questions | Event Management System using ZDK CLI

      Hello Everyone, Welcome back to yet another post in the Kaizen Series! As you already may know, for the Kaizen #200 milestone, we asked for your feedback and many of you suggested topics for us to discuss. We have been writing on these topics over the

    • Seriously - Create multiple contacts for leads, (With Company as lead) Zoho CRM

      In Zoho CRM, considering a comapny as a lead, you need us to allow addition of more than one contact. Currently the Lead Section is missing "Add contact" feature which is available in "Accounts". When you know that a particular lead can have multiple

    • can I link a contacts to multiple accounts

      can I link a contacts to multiple accounts

    • Free webinar! Digitize recruitment and onboarding with Zoho Sign and Zoho Recruit

      Hello, Tired of being buried in onboarding paperwork? With the integration between Zoho Sign and Zoho Recruit, a powerful applicant tracking system, you can digitize and streamline the entire recruitment and onboarding process, all from one platform.

    • Open Activities view.

      I really like the new views for the open and closed activities inside the deals. But when you are in the tab view instead of the column view you can only complete and edit the open activity there isn't the 3 dot option to be able to delete the activ

    • Potentially Outdated and Vulnerable Chromium Engine Installed by Ulaa Browser Installer

      I just installed Ulaa Browser a few minutes ago. Whats My Browser page shows I am using an outdated Chromium engine meaning I might be vulnerable for security exploits that might have got fixed in the new version.

    • Potentially hardcoded list of Browsers to import from (after Ulaa Setup)

      I have just installed Ulaa Browser and found that the list of browser to import data is potentially hardcoded ones rather than looking at the system. I do not have FF, IE and Edge is not my default itself. I would appreciated if Ulaa detected my browsers

    • From Layout to Code: Finding Custom Field IDs in Zoho Projects.

      Hello everyone! Ever found yourself wondering how to get the API names and IDs of custom fields in Zoho Projects while working on custom functions? Here’s a simple and effective way to do it! This method makes it super easy to locate the right field details

    • Employee type and source translation

      In Zoho People, when I fill in the employee’s information, there is the option to determine the type of employment (employee type) and the hiring source. Both options ALWAYS appear in English. It is extremely inconvenient to deal with poorly translated

    • Sync Issue Between Zoho Notebook Web App on Firefox (PC) and Android App

      Hi Zoho Notebook Community, I'm facing a sync problem with Zoho Notebook. When I use the web version on Mozilla Firefox browser on my PC, I create and save new notes, and I've synced them successfully. However, these new notes aren't showing up in my

    • Request for Clarity on Timeline for True GPT/Zia Auto-Response Capabilities

      I appreciate Zoho’s steady innovation, but I’m concerned that Desk and Zia remain well behind modern AI capabilities. For years, GPT-based tools have been able to generate and send contextual responses, yet Zoho Desk only supports summarization or suggested

    • Notebook audio recordings disappearing

      I have recently been experiencing issues where some of my attached audio recordings are disappearing. I am referring specifically to ones made within a Note card in Notebook on mobile, made by pressing the "+" button and choosing "Record audio" (or similar),

    • Has anyone built a ticket export that allows Help Center users to export the tickets shown in the My Area list they are looking at?

      Hi, We are moving to Zoho Desk soon. Our current support system displays an option in our help center allowing customers to export their Open, Closed, or all tickets based on which list they are looking at. We need to offer the same in Zoho Desk help

    • Two factor authentication for helpdesk users

      The company i work for wants use the helpdesk site in Zoho desk, as a place for their distribution partners to ask question and look for information about our product. The things there is suppose to go up there is somewhat confidential between my company

    • Zoho Desk: Q2 2025 | What's New

      Hello everyone, We are excited to announce Zoho Desk's 2025 Autumn updates. This release brings new features and enhancements that improve work management and enable businesses to provide a better overall support experience. Spanning from Zia Agents to

    • Committed Stock and To Be Received Stock via API?

      Is it possible to retrieve Committed Stock and/or To Be Received Stock for an Item via the API? I want to use this information for calculating the amount of inventory needed to be purchased.

    • Checkboxes not adhering to any policy in mail merge - data from CRM

      I want checkboxes to appear depending on whether the checkbox in the CRM module is ticked or not. However, the tickboxes that appear are either ticked or not, but don't correlate to the actual selections in the CRM module. This is is despite updating

    • Items Landed Cost and Profit?

      Hello, we recently went live with Zoho Inventory, and I have a question about the Landed Cost feature. The FAQ reads: "Tracking the landed cost helps determine the overall cost incurred in procuring the product. This, in turn, helps you to decide the

    • CC and/or BCC users in email templates

      I would like the ability to automatically assign a CC and BCC "User (company employee)" into email templates. Specifically, I would like to be able to add the "User who owns the client" as a CC automatically on any interview scheduled or candidate submitted

    • Create Contract API Endpoint Unclear "inputfields" Requirements

      Hello, I'm trying to create a Deluge function that accepts inputs from a form in Zoho Creator and creates a barebones contract of a given type. See below for the current code, cleaned of authentication information. // Fetch form data // Hidden field client_name

    • Kaizen #46 - Handling Notes through Zoho CRM API (Part 1/2)

      Hello everyone! Welcome back to another week of Kaizen! This week, we will discuss Handling Notes through Zoho CRM API. What will you learn from this post? Notes in Zoho CRM Working with Notes through Notes APIs 1. Notes in Zoho CRM 1a. Why add Notes to records? Notes are a great way to summarize your observations on customer and prospect interactions and outcomes. By saving notes as CRM data, a sales rep will always be able to keep track of how a sale is progressing. To know more about notes in

    • Marketer's Space - Why email marketing matters in ecommerce (and how to get started with Zoho Campaigns)

      Hello Marketers, Welcome to this week's Marketer's space post. Today, we'll discus why email marketing matters in ecommerce businesses. Running an online store is exciting but challenging. If you're running an online store, you've probably experienced

    • Zoho Campaigns Event timestamps do not propagate to Zoho CRM

      We have integrated Zoho CRM and Zoho Campaigns. But when looking at Contact records, the Campaign event data is missing the actual timestamps: especially when a particular email was sent. They're not in the Campaigns related list, and the cannot be found

    • Kaizen #121 : Customize List Views using Client Script

      Hello everyone! Welcome back to another interesting Kaizen post. In this post, we can discuss how to customize List Views using Client Script. This post will answer the questions Ability to remove public views by the super admin in the Zoho CRM and Is

    • Setting default From address when replying to request

      At the moment, if I want to reply to a request, the From field has three options, company@zohosupport.com, support@company.zohosupport.com, and support@company.com.  The first two are really internal address that should never be seen by the customer and

    • Tip #45 - Explore Your Support Reach with Zoho Assist’s Geo Insights - 'Insider Insights'

      Understanding where your remote support sessions are happening can help you make smarter decisions, allocate resources effectively, and improve overall customer satisfaction. In this week's Zoho Assist's community post we will be exploring Geo Insights

    • Formatting of text pasted into Zoho documents

      Howdy, I'm a newbie and finding Zoho an improvement to MS Word. Consider yourself hugged. High on my wish list would be plain text cut-and-paste. When pasting text from the web to Zoho, presently Zoho imports the formatting along with the text. This means that every cut-and-paste operation brings in text in a different font, size, or style. Can we have at least the option of importing plain text without formatting (or better yet, is this option already out there?) ... Thanks Helen

    • Add additional features to Zoho Tables

      Zoho Tables is a really great tool, why not add features like diagramming capability into the tool from applications like Draw.io which I believe is open source, you should be able to do wireframes, process flow diagrams, network design, etc. Please note

    • The Social Wall: August 2025

      Hello everyone, As summer ends, Zoho Social is gearing up for some exciting, bigger updates lined up for the months ahead. While those are in the works, we rolled out a few handy feature updates in August to keep your social media management running smoothly.

    • The Social Wall: July 2025

      Hello everyone! July has brought some exciting new updates to Zoho Social. From powerful enhancements in the Social Toolkit to new capabilities in the mobile app, we’ve packed this month with features designed to help you level up your social media presence.

    • Use Zoho Creator as a source for merge templates in Zoho Writer

      Hello all! We're excited to share that we've enhanced Zoho Creator's integration with Zoho Writer to make this combination even more powerful. You can now use Zoho Creator as a data source for mail merge templates in Zoho Writer. Making more data from

    • Tagged problem !!!

      Damn it, we're one of dozens of construction companies in Africa, but we can't link purchasing invoices to projects. Why isn't this feature available?

    • Syntax for URLs in HTML Snippets

      What are some best practices for inserting a URL in an HTML snippet? I've looked at Zoho Help articles on navigation-based and functional-based URLs, but I'm still unclear on how to incorporate them in an HTML snippet. For example, 1. How do I link to

    • The Social Wall: June 2025

      Hello everyone, We’re back with June Zoho Social highlights. This month brought some exciting feature updates—especially within the Social Toolkit—to enhance your social media presence. We engaged with several MSME companies through community meet-ups

    • Make panel configuration interface wider

      Hi there, The same way you changed the custom function editor's interface wider, it would be nice to be able to edit panels in pages using the full width of the screen rather than the currently max-width: 1368px. Is there a reason for having the configuration panel not taking the full width? Its impossible at this width to edit panels that have a lot of elements. Please change it to 100% so we can better edit the layouts. Thanks! B.

    • Tip 7: How to fetch data from another application?

      Hi everyone, Following our Zoho Creator - Tips and Tricks series every fortnight, we are back today with a tip based on one of the most popular questions asked in our forum. This tip would help you fetch data from another application(App B) and use it

    • The Social Wall: May 2025

      Hey everyone, We're excited to share some powerful updates for the month of May! Let's take a look! Reply to your Instagram and Facebook comments privately through direct messages Are you tired of cluttered comment threads or exposing customer queries

    • Sub-Form Fields as Filters for Reports

      Hi, I would like to use the Sub-Form Fields as Filters in Reports just like we do for Main Page Fields. Thanks Dan

    • Zoho CRM Formula - Current Time minus Date/Time field

      Hello, I am trying to prevent duplicate emails going to clients when more than 1 deal is being updated. To do this, I would like to create a formula to identify if a date/time field is >= 2 hours ago. Can someone please help me write this formula? Example:

    • Billing Management: #7 Usage Billing in Telecom & Internet Service Provider

      Telecom and Internet Service Providers operate in markets where usage varies drastically from one customer to another. While flexible, usage-based models align revenue directly with consumption, they also introduce operational challenges like real-time

    • Next Page