Building extensions #1: Creating and testing extensions for Zoho Finance Suite applications

Building extensions #1: Creating and testing extensions for Zoho Finance Suite applications

Hello developers!

We're excited to announce a new series called "Building extensions" to assist developers in creating efficient extensions for Zoho Finance Suite products. We'll support and guide you through the process of creating an extension and using the features offered in the developer portal.

What are extensions?

Extensions are installable plugins or add-ons that help enhance the existing functionality of your Zoho product or seamlessly integrate and interact with third-party applications for data transmission.

How can you build extensions?

Zoho offers a developer platform called Zoho Developer that allows you to build different types of applications. Sigma is a platform offered within Zoho Developer that is specifically designed for creating extensions for various Zoho products. Throughout this series, we'll look at how to create and develop extensions for the Zoho Finance Suite applications using Sigma.

Get to know all about extensions and building them further in detail.

Sigma extension support

The Zoho Finance Suite consists of seven applications: Zoho Books, Zoho Inventory, Zoho Expense, Zoho Invoice, Zoho Billing, Zoho Checkout, and Zoho Payroll. Currently, the Sigma platform supports creating and building extensions for these five Zoho Finance applications:
  • Zoho Books
  • Zoho Inventory
  • Zoho Expense
  • Zoho Invoice
  • Zoho Billing
Creating an extension
  • Log in or sign up at developer.zoho.com.
  • Go to Sigma and access your workspace.
  • Once you enter your workspace, you'll be taken to the Extensions section in Sigma.
  • Click the New Extension button to start building an extension.                                                                                     
  • Enter a name and description for the extension and choose the service you want to build the extension for. As mentioned earlier, Sigma offers support for Zoho Books, Zoho Invoice, Zoho Inventory, Zoho Billing, and Zoho Expense.                                                                                          
  • For our demo, let's choose the service as Zoho Books. Accept the terms and conditions, and then click Create.                                                                                          
  • The extension is successfully created. You can click the Extension Details icon to see an overview of the extension.                                                                                          
The extension details page shows the general details of the extension, such as creation date, creation time, and version, and allows you to associate developers with the extension.
  • Click the Edit Extension icon to start developing the extension.                                                                                  
  • The Zoho Books Developer Portal opens with the options and native features available to customize, curate, and develop your extension.                                                                
Zoho Books Developer Portal sections

The developer portal has four different sections to help customize and build your extension.

Learn: This section lists the native Zoho Books capabilities that can be used to create and develop extensions. Clicking the Set up Now button next to each feature will take you to the feature's development setup page.
                                                                                           

Build: This is the development setup section, which includes customization, automation, and components like connections, widgets, schedules, webhooks, and signals. You can customize your extension preferences, establish connections to integrate with other applications, and design custom interfaces to enhance user experience.
                                                                                          

Configure: This section assists with handling your extension's required configurations, whether they are generic settings or customizations required from the user. You can add global fields, which can be incorporated as either variables that store static data or through custom widgets that retrieve user inputs. You can also define functionalities that happen during installation and uninstallation.
                                                                                          

Publish: Once the extension has been built and configured, you can use this section to publish it for either private or public use. In both cases, the Zoho Books team will review the extension; for public extensions listed on Zoho Marketplace, the Zoho Marketplace approval team will also review them. You can share your privately published extension with other users using the Shared List option.
                                                                                          

We will explore more about each of these sections and their features in upcoming posts.

Testing an extension

The Zoho Books Developer Portal offers a dedicated testing environment for each extension, allowing you to test and validate it before publishing.

As a developer, you can use the Test Your Extension option in the top right corner of the portal to access your extension's sandbox environment.
                                                                  

This will redirect you to the sandbox testing environment for the extension you're developing, which is similar to Zoho Books and contains relevant modules to test with.
                                                                  

You can populate necessary data and test your extension functionality. Once everything is validated, you can go ahead and publish your extension for private or public use.

For support or questions related to Zoho Finance Suite extension development, you can email developer@zohofinance.com.

We hope you found this guide useful. Keep following this space for more information!

    • Recent Topics

    • Ask the Experts 27: Onboarding and managing support reps

      Hello everyone, We are back with our Ask the Experts (ATE) series for 2026. This year, we bring experts to help you address customer support challenges using Zoho Desk. For our first ATE, we are getting into the human side of customer support. "Every
    • Transaction Rule Matching

      Q1. Is there a method to have the Transaction Rules applied across multiple Bank Accounts? Q2. To match "contains" text in Transaction Rules, is a wildcard or regular expression required? Is it case sensitive? Would searching for "issue" in the following
    • Newby Questions - Vendors, Customers, and Income vs. Other Income Clarifications

      Q1. For Deposits, there does not seem to be an option for "Income". "Other Income" is an option however. What is the process to add the option to assign a deposit to type "Income"? Q2. In many cases Vendors and Customer are the same. Vendors may purchase
    • Newby Questions

      Q1. The top bar of Zoho Books has a "Search in Banking (/) " field. What is the proper use of this text box? - Searching for Amazon for example has no results but there are transactions. - Is the search case sensitive? - Are regular expressions allowed?
    • Duplicate Leads Notification Help!

      Hello! I have several web forms that have a duplicate lead notification that are being sent to the creator of the web form. I understand how to change the form entry notification, but I am specifically looking to change the recipient of the "Duplicate Lead" notification. Any help you can offer is greatly appreciated! TIA, ~ Jenn
    • Bulk Associate Tasks/Task Lists to Milestones (Similar to Issues)

      Hello Zoho Projects Team, We hope you are doing well. We would like to request an enhancement regarding Milestone management for Tasks in Zoho Projects. Current Behavior: In the Issues module, it is possible to select multiple issues and easily associate
    • How to see Statement Details Shown in Unclassified Transactions in All Transactions?

      All, The list of Unclassified Transactions show the Statement Details and Descriptions. What is the method to see that column in the All Transactions list? -Thanks!
    • Zoho CRM - Feature Request - Analytics Components Group By Week Alternative Formats

      On the Zoho CRM Analytics Components, please consider adding an option to allow group by week format to be changed to other formats such as Week Commencing or Week Ending dates, rather than the current Week Number. This would provide improved usability
    • Is Zoho Sites still actively being developed?

      Hello, Is Zoho Sites still actively being developed as part of the Zoho ecosystem? I noticed that the What's New page (https://www.zoho.com/sites/whats-new.html) does not show any updates since Q1 2025. We were considering migrating our website from Squarespace
    • Adding new data to the sheet with most recent data being added to top row.

      I am using a form that I built from within sheets.  When the form is submitted, is it possible to have the data entered in (for example) row 2 (since row 1 is the heading) instead of being added into the next available row which should be hundreds of
    • Duplicate Leads Concerns with Round Robin and Lead Approval Process

      It is great to have the Duplicate Lead Approval Process, there are a few issues with the process that I would greatly appreciate taken consideration in enhancing. It appears that A Lead comes in Lead owner assigned by the Round Robin Check for Duplicate,
    • need a packing list feature

      In our business, goods listed on an invoice are packed in separate boxes and shipped off. for e.g. an invoice may have 10 items. each item could then be packed in different boxes depending on qty of each item. this packing list is as important as the invoice for purposes of shipping documents.  Request you to add this feature asap.
    • Editing Item Group to add Image

      I did not have the image of the product when the Item Group was created. Now I have the product image, and would like to associate/add to the Item Group. However the Item Group Edit functionality does not show/allow adding/changing image. Please hel
    • Zoho CRM Queries Now Support Databases and Cloud Data Sources

      Hello everyone! We're thrilled to announce a major enhancement to the Queries feature in Zoho CRM! Queries now support a broader range of external data sources, allowing you to fetch live data and combine it with CRM records, all using a unified query
    • Use arbitrary images in deluge

      I am sending emails from my deluge code and I would like to be able to include a few images in the email template. While I know that I could put the on a website somewhere and link to them in the HTML, that is not what I want due to email client security
    • Map: Output None

      Hi, Checking if you help me inspect this block The code below triggers during Successful form Submission from another Form. // rec_a = formA[ID!=0]; rec_b = formB[ID!=0]; ListA = List(); //subformA for each recA in rec_a.ItemSubform { for each recB in
    • Incoming email replies not automatically associating with Deals/Opportunities - Is this possible in Zoho CRM?

      Hello Zoho Community, I'm running a travel agency (B2B and B2C) and we've been struggling with what seems like a basic functionality that we cannot get to work properly. Our use case: We send emails to suppliers (hotels, transportation companies) and
    • Re: Application Architecture in Zoho Creator — A Platform-Specific Deep Dive

      A recent community post on application architecture made some excellent points about planning architecture early in Zoho Creator projects. The core message is right — Creator applications have a habit of growing organically into maintenance nightmares,
    • Files Uploaded to Zoho WorkDrive Not Being Indexed by Search Engines

      Hello, I have noticed that the files I upload to Zoho WorkDrive are not being indexed by search engines, including Google. I’d like to understand why this might be happening and what steps I can take to resolve it. Here are the details of my issue: File
    • Introducing a smarter, faster, and more flexible charting experience

      Hello Zoho Sheet users, We're delighted to share the latest news about a major update to charts in Zoho Sheet! The new version supports dynamic data ranges, granular styling options, faster loading, and other interesting enhancements that allow you to
    • sync two zoho crm

      Hello everyone. Is it possible to sync 2 zoho crm? what would be the easiest way? I am thinking of Flow. I have a Custom Module that I would like to share with my client. We both use zoho crm. Regards.
    • Zoho Bookings - Feature Request - Services Which Include A Resource and Consultant

      Hi Bookings Team, My feature request is to have the ability to add Consultants and Resources to Services. Use case: Your business provides first aid training and there are certain equpment you require to provide the half day training. There are only specific
    • Assign Meeting in records

      It would be nice to be able to "call and assing" meetings from a record, for example from a Deal. Right now - calendar is synced with CRM - meetings show in calendar - you can go in each meeting and assign it to a record It would be nice to be able to
    • You have reached the maximum limit of bank accounts that can be connected to Zoho Books through token.

      I can no longer connect to my bank account to download transactions into Zoho Books. I egt the error message: "You have reached the maximum limit of bank accounts that can be connected to Zoho Books through token. To connect more accounts, write to us
    • Sincronizar eventos de Bigin en Zoho Calendar (Zoho Mail)

      Hola Me gustaría poder sincronizar mi Calendario de Zoho (Mail) con los eventos de Bigin. No veo la opción disponible.
    • Sales Receipts in UK Free tier

      Is Sales Receipts available in UK Books, specifically at the Free tier? None of the options from the help pages are available to me.
    • My client requires me to have custom pdf file names to except payment for invoices, how can I customize this before emailing.

      Hello! I love the program so far but there are a few things that are standing in the way. I hope you guys can code them in so I can keep the program for years to come. My client requires I customize the pdf file names I send in for billing. Can you please
    • When I schedule calendar appointments in zoho and invite external emails, they do not receive invites

      Hello, We have recently transitioned to zoho and are having a problem with the calendar feature. When we schedule new calendar appointments in zoho the invite emails aren't being sent to the external users that we list in participants. However, this works
    • Migrate different zoho subscription to zoho one

      Dear We have different zoho subscription we need to migrate it to zoho one. Currently we are paying for zoho email, zoho expense, zoho payroll etc under different admin We need to move it too zoho one flexlible plan for all my employees
    • Bigin use in hospital- Human Med or Veterinary

      I am looking for users who are in either human or veterinary medicine and use the CRM specifically for referral management tasks. Are you using the basic version? How many users update the CRM and is it effective? Did you pay for additional customizations?
    • Questions Regarding Helpdesk & SalesIQ Customization and Email Setup

      Hello, I hope you’re doing well. I have a few questions regarding Helpdesk and SalesIQ: Can the emails sent to customers via helpdesk tickets be fully customized — including signature, subject line, and other elements? Also, is it possible to send these
    • Internal Fillable Contract with Zoho Writer (Before Sending to Client)

      Hi everyone, I’m trying to automate the following process in Zoho CRM and would appreciate some guidance. Process: When a Deal moves to a specific stage, CRM triggers an automation. CRM sends a contract template to an internal team member so they can
    • How to sync overtime from zoho people to zoho payroll

      Hi everyone, I’m currently setting up Zoho People with Zoho Payroll. While configuring the sync, I noticed I can only fetch Employee Profiles, LOP (Loss of Pay), and enable the Employee Portal. I can’t seem to find a way to automatically pull Overtime
    • Standardize email communication with Signature Template

      Maintaining a consistent and professional signature across all outgoing emails is essential for any organization. However, when users manage their signatures individually, it often leads to inconsistencies like varying formats, missing designations, or
    • CRM x WorkDrive: File storage for new CRM signups is now powered by WorkDrive

      Availability Editions: All DCs: All Release plan: Released for new signups in all DCs. It will be enabled for existing users in a phased manner in the upcoming months. Help documentation: Documents in Zoho CRM Manage folders in Documents tab Manage files
    • How can I export all Deluge code across the application?

      I’m working on a application with multiple forms, reports, and HTML views, where Deluge scripts are used across workflows, field actions, and custom functions. Is there a way to export all Deluge scripts into a single file for easier search?
    • Zoho Books: tax is not automatically pulled from product-data anymore - why?

      Hi, until a short time ago, you could set a default taxrate for each product/item. This taxrate automatically appeared each time the item was chosen in an invoice or quote. Why does this not work anymore? The field is still there at the product record,
    • Setting up property management in Zoho Books

      Hi, I run a property management business that manages property complexes. There are multiple owners, some owning more than one property on the same complex. My role is to manage the fees they pay for maintenance of common areas, such as the swimming pool
    • Sync Attachments in Comments from Zoho Desk to Zoho Projects

      Hello Zoho Desk Team, We hope you're doing well. We are actively using the Zoho Desk–Zoho Projects integration, especially for reporting and managing bugs/issues between support and development teams. Current Limitation: After creating a bugs/issues via
    • Zoho Creator to GMAIL API Setup - Where Do I Begin?

      Does anyone know how to connect Zoho Creator to Google Workspace (Specifically GMAIL?) We have FLOW setup and working fine to send emails via GMAIL, but Flow doesn't accept file attachments which is a major problem. So, we need to be able to send an email
    • Next Page