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

      • Filter button in the Zoho Sheet Android App doesn't toggle on

        I am a new Zoho Sheets user and experiencing a specific issue with the filter functionality in the Android mobile application. Detailed Issue Description: The filter icon appears correctly in the toolbar. Upon tapping the filter icon/button, the toggle
      • 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
      • Project Notifcatiion Emails - Milestone

        Hello: I cannot get myself, or most importantly my portal client user to recieve an email upon completion of a milestone. I have set up our 1st project. I have set up a test client user. (accepted the invitation and is listed in the system as a client
      • Zoho Forms - Feature Request - Year Field

        Hi Zoho Forms Team, You currently have the following date and time fields: Date Time Date and Time Year and Month It would be useful if you could include a "Year" field For example a recent application I completed said "What year was your house built?"
      • Integrate Excel or Zoho Sheet functions / calculations to CRM product module

        Hello Community, I hope someone more experienced can help me with this question. Our price / payment plan calculations are in an Excel spreadsheet and I would like to use all those functions / calculations in my Products module. So when we send a quote
      • Sync CRM Contacts to USER'S contacts on Office 365

        I can see that the O365 sync is transferring contacts backwards and forwards between Zoho CRM and Office365. But it has created a separate address book in Office 365 called "Zoho CRM Contacts". This address book is not used by Office/Outlook's email function
      • Manage Every Customer Conversation from Every Channel inside Zoho SalesIQ

        Your customers message you from everywhere. But are you really able to track, manage, and follow through on every conversation, without missing anything? With interactions coming in from websites, mobile apps, and messaging platforms like WhatsApp and
      • Zoho Books | Product updates | February 2026

        Hello users, We’ve rolled out new features and enhancements in Zoho Books. From Advanced Reporting Tags to the ability to mark projects as completed, explore the latest updates designed to improve your bookkeeping experience. Introducing Advanced Reporting
      • This project could not be synced because it is not associated with a primary client

        When I go to ProjectName->Finance I receive a "This project could not be synced because it is not associated with a primary client" error. The project has been associated in ZohoCRM with the client. How can I set the primary client for this project. Other
      • Update latitude & longitude address field API

        How do I update the coordinates of an address field from a widget? I can't modify the latitude and longitude of the address field. I think the problem is how I'm writing formdata variable. zoho_init.then(function (data) { var queryParams = ZOHO.CREATOR.UTIL.getQueryParams();
      • Zoho Forms - Feature Request - Past Into Scanning/OCR Field

        Hi Zoho Forms Team, You recently introduced the OCR/Scanning field which I have found great use for with one client who receives work orders as a screenshot from one customer. I want to raise a feature request here which would make that field even more
      • inability to use different primary address on invoice per location

        my company operates in two different locations with different email address. The problems then is the inability to edit the primary to suite the invoice for the second location.
      • 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
      • Anyone in Australia using Zoho Books AND has their account with NAB?

        Hi I have an account with both NAB and Suncorp. Suncorp transaction come in the next day however NAB transactions take 4-5 business days to appear. eg: A deposit made today in my Suncorp will be imported into Zoho tomorrow. A deposit made today to the NAB account will be imported maybe Saturday (Friday overnight). I have contacted both Zoho and NAB but noone seems to know why. I was just wondering if anyone else in Australia uses NAB and has this issue (or doesn't) maybe we could compare notes and
      • Detailed Balance Sheet for tax preparer

        I'm using the free edition of Zoho Books. My tax preparer is asking for "detailed" Profit & Loss and Balance Sheet reports which include all the activity and transactions within the various categories. The default reports do not include these details.
      • Host Group Appointments Online in Zoho Bookings

        Greetings from the Zoho Bookings team! We’re excited to announce a new enhancement to Group Booking that makes hosting online group events smoother and more professional than ever. You can now conduct online group events with auto-generated meeting links
      • Can't rename groups on Mac desktop app

        I'm working on an up-to-date Mac with a freshly downloaded Notebook app. I'm trying to rename a group within a notebook. Here I have, left to right, a note, a group, and a note. I select the group. On the top left, I select Action. On the dropdown, "Rename"
      • Workdrive Collaboration with an External User

        I would like to know if I can setup a collaboration space with an external user in workdrive or do I need to add them as a user on my system? If I need to add them, can I add them on Workdrive only and give limit access to our space only?
      • FSM integration with Books

        Hi, I have spent a few months working with FSM and have come across a critical gap in the functionality, which I find almost shocking....either that, or I am an idiot. The lack of bi-directional sync between Books and FSM on Sales Orders/ Work Orders
      • Marketing Tip #23: Help customers with how-to guides and usage tips

        Customers don’t stop needing you after they place an order. Helping customers use your product correctly and confidently can improve satisfaction, reduce returns, and increase repeat purchases. Sharing simple how-to guides, usage tips, or care instructions
      • Powering Customer Support with our women

        In Zoho Desk support, women make up 50% of our team. We see this as one of our strengths, reflecting the spirit of this year’s theme, "Give to Gain". Our women find their balance Women carry many responsibilities — they represent frontline support, lead
      • Function #25: Automatically generate purchase orders from a sales order

        We kicked off the "Function Fridays" series with the goal of helping you automate your everyday accounting tasks. As we delve into today's post, I'm delighted to announce that we're here to present the 25th custom function in this series. While it is
      • Sales IQ chat is not working in signed android apk

        I have integrated ZOHO sales IQ support chat and i have followed each step and its working fine in my development build but when i create signed APK for it. Chat does not work in it and showing awaiting for detail. I previously asked the same query but
      • How to add line breaks in zoho.cliq.postToUser(...) message?

        In a CRM function using Deluge I'm sending this message and attempting to add some line breaks but they are ignored. Is there another way to add these breaks? My message: message: New urgent task\nDescription \nThis is a fake description.\n A new line?
      • Problem with CRM Connection not Refreshing Token

        I've setup a connection with Zoom in the CRM. I'm using this connection to automate some registrations, so my team doesn't have to manually create them in both the CRM and Zoom. Connection works great in my function until the token expires. It does not refresh and I have to manually revoke the connection and connect it again. I've chatted with Zoho about this and after emailing me that it couldn't be done I asked for specifics on why and they responded. "The connection is CRM is not a feature to
      • Create Receipt of a Donation (not a sale)

        We are a non-profit organization that receives general donations. How do I create a receipt of payment for the donor and categorize the payment as a Gift? I tried the method of creating an invoice; however that automatically created a "Sales" transaction
      • Zoho Books Invoices Templates

        It would be really helpful to have more advanced features to customise the invoice templates in Zoho Books. Especially I´m thinking of the spacing of the different parts of the invoice (Address line etc.). If you have a sender and receiver address in
      • In Lesson Video

        Can anyone help me with this? I'm not sure what happened. It suddenly became like that. I tried to reupload. I tried create a new lesson. Still the same. Please help!
      • emailing estimates

        Shows up in the customer mail logs as sent but nobody is receiving them, even when I send them to myself I don't get them ??? Something wrong with the mail server or my end ?
      • Custom TDS on Vendor Credits via API

        Hi, We are using Zoho Books APIs for posting Bills and vendor credits. We are unable to post custom TDS amount posting vendor credits. Can you please share the API spec and Payload that need to be sent for Custom TDS for Vendor Credits.
      • How to use OR when filtering using two fields

        I want to create return a list of Account Names by filtering on Field1 = "yes" OR Field 2 = "no" I can't see how to use the OR in the filter.
      • Editing the list of Categories in the Categorize Manually section of Banking in Zoho Books

        Hi, I need to create two new Categories called Withdrawals and Deposits to categorize payments in a bank account. How do I edit the Categories list?
      • Mobile phone version not working well

        I am working on the Zoho Site Builder. In the preview the desktop version looks okay, but in the mobile phone preview many words are cut off in the weirdest (wrong) way. How can I fix that?
      • Zoho - Please explain difference between Thread view and Conversation view on Ticket

        I have reviewed the help document here but am still not clear on the difference between the two views. As an example, I just had a back and forth on a ticket: - Customer emails support email. - I email back from Desk. - Customer responds back. - I email back from Desk. On the upper left drop down box on the ticket Zoho Desk now says this is "4 Threads" and "4 Conversations" . How is that 4 threads?? By my count it is 1 thread and 4 conversations (assuming by "conversation" Zoho means number of total
      • I need help to take Reports for tickets moved between departments.

        Hi, I need help to take Reports for tickets moved between different departments. Pls guide Shyam
      • Export to excel stored amounts as text instead of numbers or accounting

        Good Afternoon, We have a quarterly billing report that we generate from our Requests. It exports to excel. However if we need to add a formula (something as simple as a sum of the column), it doesn't read the dollar amounts because the export stores
      • Increase Round Robin Scheduler Frequency in Zoho Desk

        Dear Zoho Desk Team, We hope this message finds you well. We would like to request an enhancement to the Round Robin Scheduler in Zoho Desk to better address ticket assignment efficiency. Current Behavior At present, the Round Robin Scheduler operates
      • Automation #6 - Prevent Re-opening of Closed Tickets

        This is a monthly series where we pick some common use cases that have been either discussed or most asked about in our community and explain how they can be achieved using one of the automation capabilities in Zoho Desk. Typically when a customer submits
      • Zoho Desk EU slow/unresponsive

        Has anyone else got issues with ZohoDesk today in the EU? It takes an age to come back and if you do start typing something and try and send or save it looks like it times out. We are also getting this pic. ot I can't see anything on https://status.zoho.eu/
      • EU DC Partial Outage Resolved: A Detailed RCA

        Incident Summary Due to an overload on one of the nodes in the EU DC for Zoho Desk, the system was unable to handle the heavy load, causing a slowdown in requests and resulting in a partial outage for customers with data residing in that node. On May
      • Next Page