Building Extensions #4: Uploading new extensions and updating existing extensions in Sigma

Building Extensions #4: Uploading new extensions and updating existing extensions in Sigma

This series aims to equip developers with all they need to build extensions for Zoho Desk in Zoho Sigma and publish them in Zoho Marketplace.

Welcome back, Developers!

Following up on our previous post on building and testing new extensions for Zoho Desk, this post will guide you through the steps to bundle and publish them in Zoho Sigma, either as private or public extensions based on your requirements.

To publish your extension, the extension project must be validated and packed as a zip file. After validation, it needs to be uploaded in Sigma, a unified developer platform from Zoho. In Zoho Sigma, every developer will be allocated a designated workspace to build and host their apps developed for Zoho products.

Validating the extension 

The validation process checks that the extension complies with the configuration requirements of Zoho Desk. If there are any violations, they will be detected when you execute the validate command.

You can follow these steps to validate your extension.
  1. Open the terminal/command prompt.
  2. Navigate to your project folder.
  3. Execute the following command.
    $ zet validate
The results of the validation process will appear. Make changes, if required. Otherwise, you can proceed with packaging.



Packaging the extension

It's important to bundle all the relevant files of the extension project for proper execution. By invoking the pack command, a distribution folder (dist) including a ZIP file will be created that holds all the static assets generated by the developer. The ZIP file will be unpacked on Zoho's servers when the html widget in rendered in the iframe.

To package your extension as a zip file, follow the below steps:
  1. Open the terminal/command prompt.
  2. Navigate to your project folder.
  3. Execute the following command.
    $ zet pack
The zip file for your extension will be created in the dist folder of your project.

Uploading and publishing the extension

Once the extension is validated and packed, the zip file for the extension must be uploaded to Sigma. Extensions in Sigma can be published either as Public or Private extensions. Public extensions are hosted for a wider audience, and private extensions are limited to users who have the direct URL of the extension.

Private extensions can be installed and used only with the private installation URL. This URL will be generated once the extension is published privately in Sigma. Private extensions are readily available for use and do not undergo any review and approval process by our team of experts at Zoho. Sigma will do an automated validation when publishing the extension.



Public extensions are hosted through Zoho Marketplace, where users can see your extension along with other public extensions. From Zoho Marketplace, users will be able to view, install, and use your extension. You can track the usage statistics of your extension from Sigma.



To upload the zip file for your extension project:
  1. Go to Sigma.
  2. Click the New Extension button.
    The upload process flow begins.
  3. Provide the required details. 
    • Name: Name of the extension
    • Description: A small brief on what the extension does
    • Service: Choose Zoho Desk
    • Upload File: Browse and upload the packaged zip file
  4. Agree to the terms and conditions.
  5. Click Save as Draft.
    The extension details page will be displayed.
  6. Verify the details, and click Publish.
  7. In the Extension Visibility pop-up, choose Private or Public.
    • If you choose Private, click Publish.
    • If you choose Public.
      The Marketplace details page will open. Fill in the details required for publishing the extension in Zoho Marketplace.
After you upload your extension on the Sigma site, the Zoho Marketplace team reviews it for functionality and usability and provides you with feedback if any enhancements are required. Once it passes the review and functions as intended, an installation URL will be generated and the extension is made available on Zoho Marketplace.

Updating your extension

Whenever you come up with new features, enhancements to existing extensions, or bug fixes, you can update your extension and improve its functionality and performance. Each update increments the version of the extension. The zip file for the updated extension has to be submitted in Sigma again to go through the review process.

To upload the updated version of your extension, perform the following steps:
  1. Go to Sigma.
  2. Hover over your extension and click the Extension Details button.
    The extension information form with previously filled data appears.
  3. Click the  icon under the extension name.
  4. Browse and upload the zip file for the updated extension project.
Once uploaded, one of these two events happens:
  • If the extension is public, the updated version will be published in Zoho Marketplace.
  • If the extension is private, the updated version is approved and the installation URL is displayed on the extension details page. 


We hope you found this post useful. Try it out and let us know your feedback! We really appreciate hearing from you.

Stay tuned!


See Also


<<Previous                                                                                                                                       Next>>

    Access your files securely from anywhere







                            Zoho Developer Community




                                                  • Desk Community Learning Series


                                                  • Digest


                                                  • Functions


                                                  • Meetups


                                                  • Kbase


                                                  • Resources


                                                  • Glossary


                                                  • Desk Marketplace


                                                  • MVP Corner


                                                  • Word of the Day


                                                  • Ask the Experts





                                                            Manage your brands on social media



                                                                  Zoho TeamInbox Resources



                                                                      Zoho CRM Plus Resources

                                                                        Zoho Books Resources


                                                                          Zoho Subscriptions Resources

                                                                            Zoho Projects Resources


                                                                              Zoho Sprints Resources


                                                                                Qntrl Resources


                                                                                  Zoho Creator Resources



                                                                                      Zoho CRM Resources

                                                                                      • CRM Community Learning Series

                                                                                        CRM Community Learning Series


                                                                                      • Kaizen

                                                                                        Kaizen

                                                                                      • Functions

                                                                                        Functions

                                                                                      • Meetups

                                                                                        Meetups

                                                                                      • Kbase

                                                                                        Kbase

                                                                                      • Resources

                                                                                        Resources

                                                                                      • Digest

                                                                                        Digest

                                                                                      • CRM Marketplace

                                                                                        CRM Marketplace

                                                                                      • MVP Corner

                                                                                        MVP Corner









                                                                                          Design. Discuss. Deliver.

                                                                                          Create visually engaging stories with Zoho Show.

                                                                                          Get Started Now


                                                                                            Zoho Show Resources

                                                                                              Zoho Writer

                                                                                              Get Started. Write Away!

                                                                                              Writer is a powerful online word processor, designed for collaborative work.

                                                                                                Zoho CRM コンテンツ



                                                                                                  Nederlandse Hulpbronnen


                                                                                                      ご検討中の方




                                                                                                              • Recent Topics

                                                                                                              • Company Policy Upload - Request All EE to review and sign

                                                                                                                How can I upload policies into Zoho People and have the employees review them and sign off saying they agree, etc.? Also, if I make a revision to a policy, I would like that changed or updated policy to be distributed or have the employees notified that
                                                                                                              • Zoho Sign Global Settings vs. Template and Document

                                                                                                                Hello, We are running into an issue on a current use case. We already use Zoho Sign. Now that KBA is available, we want to begin using it in our tax delivery process, by allowing clients to sign electronically, but also download a copy of their return
                                                                                                              • Zoho Mail Desktop Crashes on Linux - Ubuntu 24 LTS

                                                                                                                Hi, I have been trying to run the desktop app on Ubuntu for the past few day with no luck. I have tried both the .deb package and the appImage. When I attempt to open the app. It just crashes immediately. The crash error dialog appeared once and I cant
                                                                                                              • Zoho IP blocked by SpamCop

                                                                                                                Hi, Many of my emails are blocked and I receive this:  INVALID_ADDRESS, ERROR_CODE :550, ERROR_CODE :spamcop.mimecast.org Blocked - see https://www.spamcop.net/bl.shtml?136.143.188.51. - https://community.mimecast.com/docs/DOC-1369#550 [DGwIYPPSOfWI
                                                                                                              • Differences between Zoho Books and Zoho Billing

                                                                                                                Without a long drawn out process to compare these. If you were looking at these Books and Billing, what made you opt for one and not the other. Thanks
                                                                                                              • Server error when trying to Data > Sort > Custom Sort

                                                                                                                Been using Data > Sort > Custom Sort for a while, now it has suddenly stopped working. When selecting the same data range and trying to execute, I get "Sorry! There was a problem saving your last edit. Please try again."
                                                                                                              • To Assign a genrated pdf to a file upload field using delug

                                                                                                                content = "<html><body>HTML Content on page One <div style='page-break-after:always'></div> HTML Content on page Two </body></html>"; file = zoho.file.convertToPDF(content); file.setFileName("Name of the file"); <variableName> = <FormLinkName>[ID == input.ID];
                                                                                                              • TArgets To Accounts (Modules)

                                                                                                                How can i set sale target to Customers (Accounts Module)
                                                                                                              • Breaking barriers with multilingual WhatsApp templates in IM

                                                                                                                Ever wondered what it feels like to be greeted in your own language by a brand you love? A “Welcome!” feels nice, but a “¡Bienvenido!” or “स्वागत है!” feels personal. In today’s global world, conversations often need to cross both time zones and cross
                                                                                                              • How to share private Opportunities with whole org at an account level

                                                                                                                Opportunities are currently set to private, so our sales team only sees their own opportunities, along with their manager and upper leadership. The need is the ability for the rest of the Org to see the opportunities at an account level, not within the
                                                                                                              • New in Smart Prompt: Record Assistant for contextual assistance, and support for new AI models

                                                                                                                Smart Prompt helps teams stay informed and move faster by providing relevant suggestions where work happens in CRM. With this update, Smart Prompt becomes more adaptable to your organization’s AI preferences. You can now choose which Large Language Model
                                                                                                              • Problema Verificacion con proveedor NIC.AR

                                                                                                                No puedo realizar la verificación del correo, he seguido los pasos indicados y configurado los MX. Y no puedo verificar el correo. He leido en el foro que otros han tenido el mismo problema. Alguno pudo solucionarlo?
                                                                                                              • How to remove some users in zoho accounts

                                                                                                                How to remove some users in Zoho accounts.
                                                                                                              • Unified Inbox for all, including fetched mails

                                                                                                                I fetch mails from different third-parties mailboxes. But I need to switch mailbox too see fetched mails. It's strange. All mailboxes have one shared disk space for own mail and fetched mail, but why do we need to switch mailbox (on the left bottom) to
                                                                                                              • Whatsapp Limitation Questions

                                                                                                                Good day, I would like to find out about the functionality or possibility of all the below points within the Zoho/WhatsApp integration. Will WhatsApp buttons ever be possible in the future? Will WhatsApp Re-directs to different users be possible based
                                                                                                              • Users Not Automatically Being Added To WorkDrive Team

                                                                                                                I have already created a ticket for this issue, but the support team doesn't seem to understand what's happening. Our organization started with a trial of Zoho Workplace around November 10, 2025. I created 10 users, including myself. I sent out the invites,
                                                                                                              • Synchronization between Gmail and Zoho Mail

                                                                                                                Hello! I am using Zoho Mail within the Zoho One platform. I have completed the basic setup and added all the required DNS records with our domain provider. Our goal is to set up two-way synchronization between our current Gmail inbox and Zoho Mail, but
                                                                                                              • IMAP login problem

                                                                                                                I have my domain hosted with zoho @wilson.ie I have added a new user and have enabled IMAP access to this user account The user can login to zoho mail on the web. When we enter the server settings into Outlook as per below, Outlook cannot login to the
                                                                                                              • Changes to subform in Zoho CRM Portal Timeline History Unavailable

                                                                                                                Hi Support Team, We have noticed a feature limitation in the Zoho CRM portal. We created a portal for our vendors to edit records directly, but when vendors make updates, the Modified Time and Date fields are not being updated. Additionally, these updates
                                                                                                              • This mobile number has been marked spam. Please contact support.

                                                                                                                Hi Support, Can you tell me why number was marked as spam. I have having difficult to add my number as you keep requesting i must use it. My number is +63....163 Or is Zoho company excluding Philippines from their services?
                                                                                                              • Function #11: Apply unused credits automatically to invoices

                                                                                                                Today, we bring you a custom function that automatically applies unused credits from excess payments, credit notes, and retainer payments to an invoice when it is created. Prerequisites: Create a Connection named "zbooks" to successfully execute the function.
                                                                                                              • Duplicating report but custom layout does not

                                                                                                                Dear Zoho Creator, I need to duplicate a report into 10 copies, but unfortunately the custom layout (detail view) doesn’t copy along with it. I tried exporting and importing the custom layout, but the field mappings are incorrect. I believe everyone are
                                                                                                              • Credit Card Readers?

                                                                                                                We would like to use our commerce website at conferences (and eventually in store) to swipe credit cards to pay for orders. How would we accomplish this? Does Zoho have anything available for a developer write code to integrate something like Stripe Terminal
                                                                                                              • Stock count by bin location

                                                                                                                Is there a configuration to make a stock count by bin or area and not by product. these is useful to manage count by area Regards
                                                                                                              • Add Prebuilt "Partner Finder" Template with Native Zoho CRM Integration in Zoho Sites To: Zoho Sites Product Team

                                                                                                                Hi Zoho Team, We hope you're doing well. We would like to request a prebuilt "Partner Finder" template for Zoho Sites, modeled after your excellent implementation here: 🔗 https://www.zoho.com/partners/find-partner-results.html ✅ Use Case: Our organization
                                                                                                              • How Do I Refund a Customer Directly to Their Credit Card?

                                                                                                                Hi, I use books to auto-charge my customers credit card. But when I create a credit note there doesn't seem to be a way to directly refund the amount back to their credit card. Is the only way to refund a credit note by doing it "offline" - or manually-
                                                                                                              • Zoho Learn Course Completion Notifications/Triggers/API

                                                                                                                Zoho Learn works great and will suit our course creation needs, but it appears to be lacking a bit when it comes to integration with other Zoho services (creator etc.) when it comes to course completion. 1) Is there an API or Zoho Flow trigger for when
                                                                                                              • Enhanced Recording Permission Controls for Zoho Cliq Meetings (Similar to Zoom)

                                                                                                                Hello Zoho Cliq Team, We hope you are doing well. We would like to request an enhancement to the recording permission functionality in Zoho Cliq Meetings. Current Limitation: in Zoho Cliq Only hosts and co-hosts can record a meeting. Participants cannot
                                                                                                              • Phone Connection

                                                                                                                When on a call the person on the other end complains that there is static, I am cutting in and out or they can't hear me all. This happens on the cell connection as well.
                                                                                                              • Can't add a sender adress from zoho campaigns

                                                                                                                hi, I need to change the sender address for a campaign.  When i try to add it i get a message to say 'duplicated email address found while adding your sender address'.  This is the first campaign i'm sending so I don't understand why this message is displayed? Thanks Jane 
                                                                                                              • Export History timeline

                                                                                                                Hi, I have an idea, bout zoho desk history of the ticket it would be great if the agent or admin of the zoho desk can export the timeline of the ticket history for agent report or on other matter.
                                                                                                              • Desk fails to create a new ticket on Reply email

                                                                                                                When I send a direct email to support@mysite.com, Desk will create a new ticket as expected. When I REPLY to an email sent from support@mysite.com, Desk will NOT generate a new ticket. This is very bad. How can I fix this? Use case: In a separate system
                                                                                                              • Ask the Experts 25: Experience the full spectrum of Zoho Desk’s autumn and spring releases for 2025

                                                                                                                Hello Everyone, We’re on the 25th episode of our ATE series! It's a true milestone in our live community interactions! It’s been an amazing journey since we started in October 2018. Zoho Desk has come a long way, evolving with the support of a wonderful
                                                                                                              • Addin Support in Zoho Sheet

                                                                                                                Is there any addin support available in zoho sheet as like google marketplace to enhance productivity by connecting with other apps, providing AI data analysis, streamlining business processes, and more?
                                                                                                              • Wise integration in Zoho Books

                                                                                                                Hi, it is now time for zoho books to support Wise.com integration for payment links. Wise has launched credit card payments, now about 0.5% cheaper than Stripe. Also their bank payments are much much cheaper than credit cards. Its time for books team
                                                                                                              • Function #61: Automatically add free item to the invoice based on item quantity

                                                                                                                Hello everyone, and welcome back to another Custom Function Friday! During holiday seasons or special promotions, businesses offer deals like BOGO (Buy One, Get One), Buy 3 Get 1 Free, Buy 2 at 50% off, and much more to attract customers. These promotions
                                                                                                              • Notes for Items for Future Purchase Order

                                                                                                                Next time when I order an item, tau have to make some changes in it, that order has to be placed after 4-5 months, I want to save those changes or points somewhere in the item, how will that be possible..
                                                                                                              • Schemes of different tyoe

                                                                                                                How can easily apply hourly, day wise or month wise  schemes on Bill, Quantity, and other schemes. Like I want to apply a scheme  Form today to next 7 days .where i can mention in zoho books so scheme will implement automatically to all customers and
                                                                                                              • Clients not receiving emails

                                                                                                                I've been informed that my emails are not being received. Is there anything that I should look into to rectify this? Many thanks!
                                                                                                              • Free Plan mail accounts details

                                                                                                                In the zoho mail pricing there's a free plan that includes: FREE PLAN Up to 25 Users 5GB* /User, 25MB Attachment Limit Webmail access only. Single domain hosting. I need to make sure that I'm able to create multiple email accounts in the form of: name@domain.com
                                                                                                              • Next Page