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
How do I add a blank line to the Organisation Address Format?
I'd like to have my VAT number, for example, shown prominently by having a clear gap between it and the address block above, but any blank lines in the address format get ignored in PDF outputs.
treatment for rehires
Hello, we are aware of the fact that Zoho People at the moment does not has a provision for rejoining exited employees. But is there any quick fix or hack to this? It will be appreciated a lot.
Zoho Projects Android and iOS app update: Timesheet module is now renamed as 'Time Logs', delete option has been renamed to 'Trash'.
Hello everyone! We have now renamed the Timesheet module as Time Logs and the delete option as 'Trash' on the Zoho Projects Android and iOS app. Time Logs Android: Time Logs iOS: Trash option Android: Trash option iOS: Please update the app to the latest
Zoho Mail app update: Manage profile picture, Chinese (Traditional) language support
Hello everyone! In the latest version (v3.1.9) of the Zoho Mail app update, we have brought in support to manage profile picture. You can now set/ modify the profile picture within the app. To add a new profile picture, please follow the below steps:
Reminders for Article Approval
Is there a way to send reminders for approvers to review articles and approve/deny them? I'm not seeing that option anywhere.
Add Full-Screen Viewing for Quartz Recordings in the Client Interface
Hi Zoho Team, We would like to request an enhancement to the Zoho Quartz client interface when viewing submitted recordings. Current Limitation: When viewing a Quartz recording from the client (user) interface, there is currently no option to switch the
2025 Recap: A Year to Remember | Zoho Inventory
Important Update : Pipedrive deprecated fields no longer supported in Zoho Analytics
Dear Pipedrive users, We would like to inform you about a recent update related to your Pipedrive integration with Zoho Analytics. The Pipedrive team has deprecated certain fields from their application. You can find more details in the official Pipedrive
Product Updates in Zoho Workplace applications | November 2025
Hello Workplace Community, Let’s take a look at the new features and enhancements that went live across all Workplace applications this November. Zoho Mail Format comments easily using Slash Commands With Slash commands, you can easily format text, insert
Right-Click Pipeline to Open in New Tab
Please add the ability to right-click on a pipeline to open it in a new tab
Adjusting Physical Inventory
Not getting very far with support on this one, they say they are going to fix it but nothings happened since November. Please give this a thumbs up if you would like to see this feature or comment if you have some insight. Use Case: Inventory set to be
I need to Record Vatable amount and non vatable amount separately in zoho books in a single line
I need to Record Vatable amount and non vatable amount separately in zoho books in a single line give me the customisation option and in invoice copy to customer the total amount should be inclusive 5%vat and no need to show the vatable and non vatable
Sending automated messages that appear in the ticket's conversation thread
Good morning, esteemed Zoho Desk community, warm greetings Today I am here to raise the following problem, seeking a solution that I can implement: I need to implement an automation that allows me to send reminder messages to customers when I am waiting
sync views to sheet
Im looking to sync my views aka reports in analytics to zoho sheets, when data is updated in analytics it also should be updated in sheets, till now zoho sheets only offer raw data connection and it is not enough as these reports are difficult to re-do
How to update the Status in a custom module?
Hi, I have a custom module "cm_payment_registry" in Billing, I am trying to change the status which is "Draft" with: array = {"custom_status":"Approved"}; zoho.billing.update("cm_payment_registry",organization.get("organization_id"), XXXXXXXXXXXXXX, array,"connectionname");
Reporting Tags
We've been using reporting tags for years (before itemizing was available) and now we are finding reporting these tags are impossible to track. Reports have changed in the customization and our columns of reporting tags no longer show up. We do not use
Opening balances - Accounts Receivable and Payable
Our accounting year starts on 1st August 2013 and I have a Trial Balance as at that date, including Accounts Receivableand Accounts Payable balances, broken down by each customer and supplier. Q1 - do I show my opening balance date as 31st July 2013 or
Replace Zoho Invoice with QuickBooks
We are implementing Zoho FSM for a cleaning business in the US with 50+ field workers. This business has been using Quickbooks for accounting for decades and will not migrate to Zoho Books. A major issue in the integration is the US sales tax calculation.
2025 Highlights: A Year of Steady Progress and Significant Developments
As we come to the end of 2025, let's take a moment to reflect on the significant progress and developments we've made to improve your travel and expense management. In the Spotlight Introducing Online Booking (US edition only - Early access) Enable online
Function #42: Show the actual rate of items on invoices
Hello everyone, and welcome back to our series! In Zoho Books, you have the ability to create Price Lists, wherein you can mark up and mark down the item rates by a specific percentage or set custom rates. Generally, when you apply a price list to an
Ability to Set Text Direction for Individual Cells in Zoho Sheet
Dear Zoho Sheet Team, We hope you are doing well. We would like to request an enhancement in Zoho Sheet that allows users to set the text direction (right-to-left or left-to-right) for individual cells, similar to what is available in Google Sheets. Use
New in CRM: Dynamic filters for lookup fields
Last modified on Oct 28, 2024: This feature was initially available only through Early Access upon request. It is now available to all users across all data centers, except for the IN DC. Users in the IN DC can temporarily request access using this form
Warehouse fast processing
Hey guys, would anyone be interested in something like the attached image ? If there's any interest I'd be willing to develop it further for others to use, it's much faster than using Zohos native solutions, it can part pack, pack in full, part ship,
Automatic Invoice Number generation for createRecord
Hello, while testing some custom Buttons in my Zoho Books application, I noticed that I get an error that previously did not occur. After some further digging I found that the automatic transaction numbering of invoices no longer work in my organization.
Can I create a CODE 128 custom field for my items in Zoho Inventory and then use it for generating Sales Orders?
Can anyone helps me, I don't want to use the SKU code for scanning my products. Because all my products have a CODE-128 label attached.
Start/Stop Timmer in Chrome Extension
The chrome extension is great and allows you to do allot however one of the most common things employees working on projects need to do is track their time. Having an easy start/stop timer to track time would be great.
Invalid collection string
I haven't changed anything in one of my functions. I'm trying to run it manually and suddenly "Invalid collection string" appears. My code has 6 lines and the error says that the error is on 7th line. Why? What does this error mean? Nothing has been changed
Zoho Directory 2025: New Features | Security Enhancements | Enriched UI
Hello everyone, Greetings from the Zoho Directory team! 2025 has been a highly successful year for Zoho Directory. We are delighted to introduce a fresh set of features, an enriched UI, and major product enhancements. These updates aim to deliver a smoother
Bulk Schedule for Posting TikTok
Hallo, We have a client whose business is a social media agency specifically TikTok. Currently they are handling 30 TikTok accounts from. I think zoho Social can handle it with Agency License + with Add on 10 Brands. Their concern is related to posting
zoho people 5 report
How do I customize my report in Zoho People Report? I understand that I can get the results of multi-table queries through SQL join statements, but I don't know the relationship between each table. I tried to create a report using Attendance User Report
Leave Report Emailed Weekly
I am wondering if someone knows how to have a report generated either weekly or monthly or both for department heads and ownership of upcoming employee leave. For instance, it would be nice to get an emailed report on Friday for the upcoming week of who
Zoho Flow Decision Continuing Despite Not Meeting Conditions
I have a picklist field called Lead Status in the leads module, with the following lead Statuses: New Lead Attempted Contact - 1 Attempted Contact - 2 Attempted Contact - 3 Attempted Contact - 4 Attempted Contact - 5 Attempted Contact - 6 Attempted Contact
Tip #55- Accessibility Controls in Zoho Assist: Exploring Vision Settings- 'Insider Insights'
As we approach the end of the year, it’s a good moment to reflect on how we can make our tools more inclusive and easier to use for everyone. Remote support often involves long hours in front of screens, varied lighting conditions, and users with different
Zoho Recruit Slow and Freezing on all screens
We have had an issue with Zoho Recruit for weeks being extremely slow and at times freezing. We have 100 mega internet, and I went into each computer and updated the virtual memory so there is more available. Also restarted all computers daily. Still having the issues. Almost unable to work.
Credit Management: #2 Configuring Right Payment Terms for Credit Control
Think about the last time you ordered something online and saw that little note at the checkout, "Pay on Delivery" or "Pay later". It's simple, but it actually sets the tone. As a business owner, you know exactly when payment is expected. Now, imagine
Dependent (Conditional) Fields in Zoho Bookings Forms
Hello Zoho Bookings Team, Greetings, We would like to request the ability to create dependent (conditional) fields in Zoho Bookings registration forms. Current Limitation: There is currently no way to make one field’s available options depend on the value
Bug Report: Search fails to find existing notes after Evernote import
Hello, I recently migrated from Evernote (~2600 notes across 23 notebooks), but the search functionality is currently broken. The Issue: I can manually browse to a specific note and see it exists. However, when I type the exact or partial title of that
Marketing Tip #13: Win repeat customers with post-purchase emails
The relationship with your customer doesn’t end after the sale; that’s when it begins. A thoughtful post-purchase message shows customers you appreciate them, keeps your brand top of mind, and can even lead to another sale. You can thank them, ask for
Zoho Form
I have problem with Zoho Form. One of form i don't received the PDF version. Others okay except this one. W904533
Create & Update Zoho Vault Passwords via Zoho Flow
Hi Zoho Flow / Zoho Vault Team, We’d like to request an enhancement to the Zoho Vault integration in Zoho Flow. Current Limitation: At the moment, Zoho Flow supports only the following selected Zoho Vault actions, such as: Fetch passwords, Share passwords
Next Page