In our previous post, we noted the two ways to create extensions for Zoho Projects— using the cloud editor and using the command line interface (CLI). We also shared how to create an extension using the Sigma cloud editor. In this post, we'll take a closer look at creating an extension using the CLI.
You'll learn how to create an extension project template with the CLI, test it, upload the zipped project while creating an extension, and then edit or change it. Let's go over each of these steps in detail.
Building an extension project using the CLI
- To create an extension project, we must first set up the development environment, which involves:
➤ Downloading Node.js: Node.js acts as the base platform as well as the JavaScript environment in which the JavaScript code is executed.
➤ Installing ZET CLI: Zoho offers a command line interface called Zoho Extension Toolkit (ZET) which enables you to build, test, and pack your extension project.
- Once the development environment is ready, use the basic ZET commands to create, validate, pack, and test your extension project.
➤ zet init: Create a new project and add the necessary folder structure and resources
➤ zet validate: Validate the entire project
➤ zet pack: Pack the project to get a zipped file that will later be associated as the connected app
➤ zet run: Run the internal Zoho server to test the project locally
Now, let's use these commands to create and manage an extension project.
- First, use the zet init command. Select Zoho Projects as the Zoho service from the dropdown list.
- Enter a name for the extension. An extension with the directory structure required for a sample Zoho Projects extension is created automatically.
- This directory structure contains an app folder and a plugin-manifest.json file, both of which are similar to those created by the Sigma cloud editor detailed in the last post.
- The app folder can be used to manage all the important resources required for your extension. By default, itincludes an index.html file, which serves as the UI for a sample widget.
- The plugin-manifest.json file helps with extension configuration. It includes a widgets key configured with a default sample widget named, "Projects Extension" in the default location as the task details tab, along with the URL as the location of the index.html file.
Now that the extension project has been created, lets go ahead and test it in the Zoho Projects portal.
Testing an extension project using the CLI
- To test a sample Zoho Projects extension created with the ZET CLI, use the Change Directory command to navigate to the project folder. Then, run the zet run command.
- This command starts a local server and enables you to test your extension locally.
- Now, navigate to your Zoho Projects portal. Click the Setup icon.
- Select Developer Space from the left panel. Click Enable Developer Mode.
- Developer Mode will be enabled and the page will automatically refresh.
- You may now test your extension functionalities in the Zoho Projects portal.
- Since the sample extension had a default widget called, "Projects Extension" configured on the Task Details page, choose and enter a project task in your portal.
- Click on the Projects Extension tab on the Task Details page, and you will see that the widget has loaded.
- Once you have finished testing your extension's functionality, use the zet pack command. This command adds a dist folder to the directory structure, zips the extension project, and places the zipped file inside the newly created dist folder.
Uploading the zipped file to your Sigma extension
Now that we have created the extension project and tested its functionalities locally, lets go ahead and create an extension in Sigma.
- Once you enter your Sigma workspace, click the New Extension button to build a new extension.
- Enter a name and description for the extension. Choose Zoho Projects for the service.
- Toggle Upload Existing File to Yes.
- Click Browse to locate and upload the extension project's zipped file, accept the terms and conditions, and click Create.
- You will be redirected to the cloud editor. The directory structure of your CLI extension project will be automatically populated with the project's contents.
Editing an extension created with the CLI
- You can make edits or changes to your extension code directly from the cloud editor.
- If you wish to make changes to a file or its contents in the directory structure of your CLI extension project, please be sure to pack the extension project again using the zet pack CLI command.
- Go to Sigma. Click the Extension Details icon of the extension you wish to edit.
- Click the Edit icon under the extension name.
- Browse for and upload the new zipped file, accept the terms and conditions, and click Update.
- The extension will be updated to reflect the changes you have made.
In this post, we have covered the process of creating an extension for Zoho Projects through ZET CLI. We hope you found this information useful. Keep following this space for more information!

Sign up for a
Zoho Developer account and start developing extensions for Zoho products using Sigma.
SEE ALSO
Recent Topics
Building Toppings #2 - Learn how to use Bigin's Developer Console to build toppings
Hey Biginners, In our last post, we discussed what toppings are, why they're essential to extending Bigin's capabilities, and how the Bigin Developer Center serves as the starting point for building them. As a cloud platform, the Developer Center empowers
Links are incorrect when sent out
I'm adding in hyperlinks into my eDM. When I send a test email, it's all correct. However, when I send out the eDM, all the hyperlinks jump up one space so none of the links are opening to the correct page. Why is this happening and how can I fix it?
Tip of the week #16 - Search and filter threads based on criteria
Zoho TeamInbox lets you search and filter threads with any information that you have about the thread. You just have to input the criteria and Zoho TeamInbox will list all the threads that match the condition. Firstly, there is a global search you can
Introducing recipient authentication via Stripe Identity in Zoho Sign
Hi everyone! It's important to authenticate your recipient's identity before they access and sign important documents to ensure the highest level of compliance. Zoho Sign already helps businesses do this with various authentication methods: SMS OTP Email
Keep Converted Leads
How do I keep the converted leads in the Leads Module after conversion (converting it to account, contact, deal). I want to add it in a converted stage in the leads module in order to get a report or dashboard and see all converted leads from my pip
Customizing Global Search Settings for All Users
Hi Our team use the brilliant global search functionality within CRM many many times daily. But, we struggle with the out-of-the box columns that CRM gives you. We are always telling users to customize this look to more suit our business, to show the
Introducing Formula Fields for performing dynamic calculations
Greetings, With the Formula Field, you can generate numerical calculations using provided functions and available fields, enabling you to derive dynamic data. You can utilize mathematical formulas to populate results based on the provided inputs. This
Tip of the Week #77– Stay informed of the activities happening in your organization
Whenever a message is handled in Zoho TeamInbox, every action is recorded in the Activity Log. This ensures you always know what’s happening across your teams and inboxes. To access it, simply click the Audits icon on the left pane’s top bar after logging
Zoho Logs - Not seeing logs since 30 Nov
Hi, we have a few functions running, I am testing some new ones and noticed that although I can see executions, I cannot see any logs, even when the first line on the functions is a log. I reviewed some existing functions, one of which is invoked on a
Workdrive MS Office integration
Have installed subscribed version of Zoho WorkDrive VSTO runtime not found is the error when I try to install Zoho_WorkDrive_For_Office Unable to open work files in Excel and Word Urgent, since I have migrated all my OneDrive files to work drive already
How to change Zoho Vault password
I am searching where I can change the Vault Password after having changed the Zoho account password. I don't see this option anywhere in my account. It should be simple and accessible! Please help. Thanks!
Zoho Workdrive - Communication / Chat Bar
Hi Team, Please consider adding an option to allow admins to turn on or off the Zoho Communication Bar. Example of what I mean by Communication Bar: It's such a pain sometimes when I'm in WorkDrive and I want to share a link to a file with a colleague
When Marking a Multiple Choice Answer Exclusive - Not Following My Survey Disqualification Logic
Using a multiple choice (many answers) question and I created survey disqualification logic that was working as intended. My question: Disqualification page logic is: If (QUESTION) is "any one of the following" then (OPTIONS) - a custom message populates
Where to Add Machines as Products to Map with Assets in Zoho FSM?
implementing Zoho FSM for a clinical equipment supply company. The business sells and installs clinical machines in hospitals and clinics, and they also handle service requests, scheduled maintenance, calibration visits, and general machine upkeep. In
Show Zoom Link in Recipient's Calendar
We set up meetings within a record, selecting the "Make this an online meeting". We use Zoom. Most of the recipients go to their calendar (usually Gmail or Outlook, corporate) to join the Zoom meeting, but there is no Zoom link in the calendar. Can this
Zoho Bigin - should be able to link a "contact" to multiple "companies"
Hello Support, I called into telephone support and was told that a contact can only be linked to one company. We have situations were director are contacts of and directors of multiple companies so that seems a basic weakness in Bigin. When go to add
Does Thrive work with Zoho Billing (Subscriptions)?
I would like to use Thrive with Zoho Billing Subscriptions but don't see a way to do so. Can someone point me in the right direction? Thank you
Radio button data won't update
Wondering if anyone is experiencing the same problem. I tried bulk updating our data on Zoho Creator using API and noticed that the radio button field wasn't updated. I have tried updating it manually, it didn't work. When I tried updating a text field
Introducing Global Sets for easy management of similar picklists in CRM
Latest update (December 2025): You can now apply color coding to the values inside a global set, the same way you color code values in regular picklist fields. Update (Sep 2024): We've increased the maximum count limit for global sets. These new limits
No Ability to Rename Record Template PDFs in SendMail Task
As highlighted previously in this post, we still have to deal with the limitation of not being able to rename a record template when sent as a PDF using the SendMail Task. This creates unnecessary complexity for what should be a simple operation, and
New in CPQ: Smarter suggestions for Product Configurator by Zia, and additional criteria in Price Rules
Hello everyone! CPQ's Product Configurator in Zoho CRM allows sales teams to define structured product bundles through configuration rules, ensuring that the right product combinations are applied consistently in quotes. Admins set up these configurations
Process between CRM and Campaigns to ensure double opt-in contacts?
I would like to ask for a few clarifications to ensure we fully comply with best practices and legal requirements: According to the documentation (Zoho Campaigns CRM sync – Default option), the best and recommended way to sync contacts is by using the
Zoho Books - New Interface keep details with PDF View
Hello, The Zoho Books Interface has changed for estimates etc... One thing is causing issues though. Before the change, in PDF view you could see the detail information including custom fields entered for the estimate. Now, you have to switch between
Tip #52- Zoho Assist Downloads: Everything You Need in One Place- 'Insider Insights'
Looking to start remote support sessions faster, manage unattended devices effortlessly, or join sessions without any hassle? The Zoho Assist Downloads Center has all the tools you need—across desktop, mobile, IoT, and browser environments. With our range
Condition based aggregate fields in subforms
Hello everyone, We're excited to inform you about the latest enhancements made to our aggregate field capabilities in subforms; create aggregate fields based on conditions! An aggregate field is a column on which a mathematical function has been applied.
SalesInbox
Sorry for saying this but SalesInbox is a really mess. BIG FAIL. Bad UX and VERY bad IMAP sync. I don't know how can someone use this to be more productive. It's just the oposite. I'm trying to use SalesInbox for a while but sales people do not have just sales activities so we still have to came back to the mail app anyway. Folders of SalesInbox are not in sync with folders of mail server (wich syncs Ok to mobile) and vice-versa wich leads to double work as now you have to cleanup 3 inboxes (Mail
Print labels on selected view
How can I print labels for select view. Always defaults to ALL contacts when I select View = Mailing Labels. Thanks!!
Update CRM Price Books to include volume discounts as per Zoho Books/Inventory
Once again, Zoho has 3 great products that all store information in different ways (which is not helpful when you attempt to integrate the 3 products - one of the best features of Zoho). Zoho CRM Price Books are basic at best. Zoho Books/Inventory Price
Tip #40- Strengthen Remote Support with IP-based Restrictions in Zoho Assist– ‘Insider Insights’
Protecting sensitive data and preventing unauthorized access is a top priority for any organization. With IP-based restrictions in Zoho Assist, you can ensure that only users from trusted networks can initiate remote support sessions. Say your IT team
Printing Client Lists
I was looking for a way to print out client lists based on the account. For example if I want all my contacts from company A on one sheet, how would I do this. Moderation Update (3rd December 2025): There are two challenges discussed in this thread. 1.
Qwen to be the default open source Generative AI model in Zoho Desk
Hello everyone, At Zoho Desk, we will make the latest Qwen (30B parameters) the default LLM for our Generative AI features, including Answer Bot, Reply Assistant, and others. As a subsequent step, we will discontinue support for Llama (8B parameters).
ZOHO Blueprint and Workflow
Hi, Correct me if i'm wrong, Blueprint triggers when a record that meets the criteria is created. It follows a specific transition that you will be setting up. Does blueprint work if the first state was triggered by a workflow? For example, In my custom module 1, I have a field named status. The statuses are 1, 2, 3 and 4. As soon as I create a new record, a workflow triggers that updates the status field to 1. Can a blueprint start from 2? My other concern is, can blueprint transitions work at the
Zoho CRM Participants Automatic - Invite Using Deluge
Hi Zoho! Is there a way to make the invitations automatic via API? I'm using this one but it doesn't work or reflect in the CRM: participantUser = Map(); participantUser.put("type","email"); participantUser.put("participant",email); participantUser.put("invited",
Greek character in Deluxe script
Hi, We have been using a script since 2022 which replaces characters in Greek contact names using replaceAll. Since this morning, all the Greek characters used in the script have turned to question marks. I tried retyping the characters, copy-pasting
Work Order Assignment for Engineers Handling Their Own Requests
I’m setting up FSM for a business where there are multiple engineers, but each engineer handles their own process end-to-end receiving the service request, creating the work order, and completing the field service job. I noticed that I must create an
Experience Zoho Show on Mac now!
Work today isn’t tied to a single place, time, or routine. It happens in cafes between meetings, on flights, or late at night when ideas strike. And when ins, your tools need to be ready, wherever you are. That’s why we built the Zoho Show app for Mac.
【開催報告】東京 ユーザー交流会 Vol.4 | Zoho CRM 自動化のコツ ・Bookings のビジネス活用シーンとおすすめ機能を紹介
ユーザーの皆さま、こんにちは。コミュニティチームの藤澤です。 11月28日(金)に新橋で「東京 ユーザー交流会 Vol.4」を開催しました。ご参加くださったユーザーの皆さま、ありがとうございました。ユーザー交流会の年内開催は、今回が最後でした。 この投稿では、当日のセッションの様子や使用した資料を紹介しています。残念ながら当日お越しいただけなかった方も、ぜひチェックしてみてください😊 ユーザー活用事例セッション:関数やクライアントスクリプトまで、CRMをもっと便利に Zoho CRM には、ワークフローやブループリントなど、さまざまな自動化に役立つ標準機能が備わっています。さらに、関数(Deluge)のようにスクリプトを記述して高度な自動化を実現することもできます。
Kiosk Button Actions
I need to add an action to a Kiosk Button to loop me back to start the kiosk again and I am not sure what that looks like (function, etc.).
Dependent drop-downs... how?
Good day. I have 2 different situations where I need a dependent drop-down field. First is for a subform, where I want to show related fields for a specific customer on the main form. In my case it is a parent whose children make use of our school transport
Reporting Limitation on Lead–Product Relation in Zoho CRM
I noticed that Zoho CRM has a default Products related list under Leads. However, when I try to create a report for Lead–Product association, I’m facing some limitations. To fix this, I’m considering adding a multi-lookup field along with a custom related
Next Page