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.
We hope you found this guide useful. Keep following this space for more information!
Recent Topics
Include the "Added Email ID" to the Filters of a Report
Hi, With a Report and lots of entries, a normal thing is to filter entries by the submitter, but that is not included in the Auto Filter of Reports and you can't add a custom filter to a Report without specifying the actual value. I would like to be able
Loops in Deluge
Hi, Can someone tell me how I do a simple loop in deluge? For example, if i have a variable "X" containing a number of loops to perform, i would like to perform an action X amount of times. X = 10; do while (Y < X){ // ... do something } to further explain, the equivalent in PHP of what i am trying to acheive would be: $X = 20; for($Y = 1; $Y < $X; $Y++ ){ // ... do something } Thanks
I am facing a problem with an if-else condition
If I use if, else if, and else conditions in Deluge with the same variable name, sometimes the variable causes an error because the same variable name is present in every block
Zoho Projects - Reply by email to @ mentions posted on the Feed.
When mentioning someone on the Feed (Status), it would be great if that mentioned person could reply to the email notification to update the Feed thread.
Record Overseas Transactions Along with CC charges
Hi All, We receive payments via stripe in multiple currencies and stripe takes around 2.5% fees. The amount is settled in INR into our local bank. What should be the currency of the income account used for Stripe payments? Here is a sample flow that we
Product Updates in Zoho Workplace applications | October 2025
Hello Workplace Community, Let’s take a look at the new features and enhancements that went live across all Workplace applications this October. Zoho Mail Create Signature from Compose window You can now effortlessly create a Signature using the Create
Subform data to Sheets
I have been trying to setup a Zoho Flow automation to bring any Subform input to a Zoho Sheets but it seems impossible to post the subform entries to a Zoho Sheet. Is there any way to do it via Zoho Sheet API? https://www.zoho.com/sheet/help/api/v2/#CONTENT-Insert-row-with-JSON-data
Edit Contact Roles in the Potentials Mod
New to ZOHO so I need some help. I work the same people on different projects concurrency. Their contact info remains the same but their role changes from project to project. In the Potential Mod you can pick contacts and assign a Role to them. I know
Is there a way to disable the Activity Reminders Pop-Up Window every time I log in?
Just wondering if there is a setting to disable the window from opening every time I open my CRM? Thanks Chris
Hide fields only for creation
Hello, I'd like to hide some fields only during the creation of a contact in Zoho CRM. In fact I have some fields that are automatically calculated thanks to an automation, so when my users create a contact I don't want them to fill those fields. I know
Rich-text fields in Zoho CRM
Hello everyone, We're thrilled to announce an important enhancement that will significantly enhance the readability and formatting capabilities of your information: rich text options for multi-line fields. With this update, you can now enjoy a more versatile
Font Size 11 - Zoho CRM Email Templates
Our company communicates with our vendors exclusively using Calibri Font Size 11, as this is the standard formatting for professional emails. Since the CRM only allows for the selection of font sizes 10 & 12, we have been unable to utilize the CRM email
Error 400 Booking
Added a custom domain to Booking. Am Getting a SSL Error that has some other domain on the SSL and giving a 400 error. Followed instructions and it stated it verified our domain.. However it is not working. Please Help!
Zoho Projects - Email Notifications for Feed Updates
Hi Projects Team, I'm working with a client who wants a simple way to communicate with their customers on projects. Getting the customer to add comments to Tasks or Bug records is not ideal, as we need a way which is easy with minimal training, and has
Zoho Analytics Export API
Hi Team, I’m working on some integration tasks and wanted to confirm if it’s possible to retrieve a Zoho Analytics table as JSON data using a Deluge script. I’ve already stored my custom data from multiple sources and combined it into a single source.
Request to Remove LinkedIn Verification from My Emai
I would like to submit a complaint regarding my Zoho Mail account. I previously used this email address to verify a LinkedIn account, but that LinkedIn account has now been closed. I need to remove or cancel the verification associated with the closed
Introducing the all-new email parser!
Greetings, We are pleased to introduce to you, a brand-new, upgraded version of the Zoho CRM Email Parser, which is packed with fresh features and has been completely redesigned to meet latest customers needs and their business requirements. On that note,
Zoho Projects - Refine Access to Collaboration Menu
Hi Projects Team, I noticed that Calendar, Chat and Meeting menu options in the Collaboration section are visible to client users, even when they don't have access to the features. This could be confusing and frustrating, because if it's there you expect
Extracting Images from a Zoho Creator Report into a Pages
If you’ve uploaded images in a form and can see them in your report, you might also want to display those same images inside a Page (custom HTML page). This is useful for dashboards, profile pages, or any place where images should be visible dynamically
Zoho is blocking emails I subscribe to from one sender
About 4 months ago I stopped receiving newsletters that I subscribe to from @thedispatch.com. They tell me that zoho's server is blocking them. I've added them to my contacts list, but they're not even reaching my inbox. I don't know how to troubleshoot
Inactive Items - Make Less Prominent by Default
Currently, when one marks an Item as "Inactive", it really doesn't do much of anything to hide it or get it out of the way. Search and reporting within Finance should, by default, hide inactive Items from standard reports, searches, etc. If one specifically
How to calculate GST based on "Ship To Address"
We into the interior designing work, providing "Works Contract Services" to our clients across India. We are registered under GST in Maharashtra state. For works contract services as per the GST rule, we need to decide place of supply based on "Ship to
I NEED TO NUMBER TO TEXT NO HERE
=NUMBERTEXT NEEED
Auto-fill New Row with Previous Row Values
rowsize = input.Order_Items.count();
for each row1 in input.Order_Items
{
rowsize = rowsize - 1;
if(rowsize == 1)
{
row.Door_Model = row1.Door_Model;
row.Door_Color = row1.Door_Color;
row.Materials = row1.Materials;
Python - code studio
Hi, I see the code studio is "coming soon". We have some files that will require some more complex transformation, is this feature far off? It appears to have been released in Zoho Analytics already
API question - adding a thread to an existing ticket
Hi Is there an API function for the customer to add to an existing ticket thread? example, customer puts in new support ticket. support replies and ask for more details. customer replies with more details -what api function is used for this (will add record append to same ticket number?) Thanks
Calendar week view: Today + 6
Is there anyway to have the calendar change dynamically based on the date? Due to the amount of events, we only display a week at a time, but towards the end of the week, we can no longer see ahead to next week (without changing it manually every time).
How to restrict user/portal user change canvas view
Hi , I would like to restrict user / portal user change their canvas view because I hide some sensitive field for them. I dont want my user switch the canvas view that do not belong to them But seems Zoho do not provide this setting?
How to add to Subforms via Zapier with Zoho Writer?
I have the following layout for a Zoho Writer Document. As you can see there is a repeating subform taking in "Items". I am trying to make a Zapier integration with it, and I can see there is 1 field saying: "Items", but it does not specify how I'm supposed
Contrôles administratifs granulaires : un atout pour la sécurité des e-mails
La moindre erreur dans votre système de messagerie peut coûter très cher à votre entreprise, tant en argent qu’en conformité et en image de marque. Pour beaucoup d’organisations, ce risque est bien réel. Les e-mails véhiculent quotidiennement des informations
Collections Management: #6 Realign Customers who gets back In-Term
Arun stared at the subscription list on his dashboard. Another account had just been moved to Cancelled status after completing the whole dunning process. Nothing unusual, just that payment failures happen, retries fail, and cancellation is the expected
Zoho Mail IP Blacklist
I need problems with send mails: Error: junk mail rejected - sender4-op-o10.zoho.com 136.143.188.10, is in RBL. Spamcop. Please remove FQDN for blacklist. Regards.
I can receive but not send emails
Hello, I've been not able to send emails for almost a year now. I been using alternate email to do this. I want to know how to fix this so I can use my zoho account normally again.
The challenge of 24/7 connectivity: Being present and meeting customer expectations
Before television entered our homes, radio was our window to the world. We had to tune carefully to catch voices from distant places. When television arrived, the world began to grow smaller. We can watch rocket launches, see the goal that wins our favorite
How to download all attachments from inbox, send, other folders in one go
Hi All, Appreciate if anyone could help me with steps for below requirement. How to download all attachments from inbox, send, other folders in one go. Even mapping to new folder will help me. Thanks in advance.
Cannot connect mail accounts to Thunderbird
Hi Support - I'm attempting to add my mail accounts to Thunderbird but I'm getting an unable to login to server error. I tried to use the password associated with my account I received the unable to login error. So I went into Zoho Accounts and generate
Alias Email Id already exists
Hi, I just verified my domain sesque (dot) com and now I am trying to create the admin account using admin (at) sesque (dot) com, but I am getting an error saying "Alias Email Id already exists". I used to have another Zoho account with this email address,
Unable to connect to smtp server, connection timed out
Hi Team, I am facing below issue, while sending out emails from thunderbird client. It used to work, facing this issue from morning. Error: Sending of the message failed. The message could not be sent because the connection to Outgoing server (SMTP) smtp.zoho.com
Kaizen #217 - Actions APIs : Tasks
Welcome to another week of Kaizen! In last week's post we discussed Email Notifications APIs which act as the link between your Workflow automations and you. We have discussed how Zylker Cloud Services uses Email Notifications API in their custom dashboard.
DKIM Verification Failed (Namecheap)
Hi! I have already set up the TXT records in Namecheap but I keep getting the "Verification Failed" pop up. Was wondering if I'm the only one who has this problem and can anyone help me with this? Thanks!
Next Page