Building extensions #5: Integrating applications with Zoho Projects through Connections

Building extensions #5: Integrating applications with Zoho Projects through Connections

In our last post, we discussed the essential features that a Zoho Projects extension can provide. Starting with this post andin every subsequent post going forward, we'll go through each of those features in depth, one by one, with an example use case.
In this post, we'll explore the Connections feature in detail.

Connections: When and why?

Creating a tightly coupled integration requires the establishment of a secure connection between applications. To achieve this secured connection, the Sigma platform provides the Connection feature that can be used to establish a secure link and perform data operations across applications seamlessly and efficiently through an extension.

Use case

Working on development-related tasks might require dealing with a variety of files, such as code snippets, help documents, or service level agreements. While several file management applications are available to securely store and organize data, manually handling file storage between applications remains challenging.

For our example, let's use Zoho Projects to manage all tasks, and Dropbox to manage and store data.

What is the difficulty faced?

Dropbox offers a file request feature that allows you to collect files and organize them into folders. However, as we talked about in our previous post, manually categorizing and uploading task-related files to their respective file request folders in Dropbox would be a time-consuming and laborious activity. Instead, it would be more efficient to integrate Dropbox with Zoho Projects so that uploading task files to Dropbox file request folders can be done instantly from within Zoho Projects.


How can it be sorted?

You can create a connection between Zoho Projects and Dropbox. With the secure connection setup, the file request folders available in Dropbox can be listed on the task details page of Zoho Projects through an extension. You may then easily upload files from Zoho Projects to their corresponding folders in Dropbox, saving time and making you more organized.

What are the components required to achieve this use case?

  1. A connection between Zoho Projects and Dropbox.
  2. An extension configuration that includes:
  • Creating an extension
  • Configuring the plugin manifest
  • Setting up the widget code to display the Dropbox file request folders inside the Zoho Projects task details page.
Now, let's see how we can achieve each of these components.

1. Creating a secure connection using the Connection feature

  • Log in or sign up into developer.zoho.com.
  • Go to Sigma and access your workspace.
  • Once you enter your workspace, select the Connections section in Sigma.
Note: Connections created in Zoho Projects are also accessible within the Connections section in Sigma. These connections can be used in extensions to connect with other applications.

  • Choose the service as Zoho Projects and select your Zoho Projects organization. Click on Create Connection.

  • Sigma offers a list of default services from which you can choose and easily connect with Zoho Projects. If the application you want to integrate isn’t in the default list, you can add and build a connection with it using the custom services option.
Note: If you’re looking to connect Zoho Projects with another Zoho Product that also follows the OneAuth authentication mechanism, select the service Zoho OneAuth from the Default Services list to create the connection.

  • In our example, the application to connect with Zoho Projects is Dropbox, and because it’s in the Default Services list, go ahead and choose Dropbox.

  • After choosing the service, enter the connection name. A connection link name will be populated automatically.
  • Toggle Use credentials of login user to Yes if you want every user installing the extension to access the connection using their own login credentials, or No if admin credentials are enough to access the connection.
  • In our example, we'll proceed with the former. So toggle to Yes, and then click Create and connect.
Note: For services in which the option to choose the scopes is displayed, choose the necessary scopes, and then click Create and connect.

  • You’ll be directed through a series of authorization steps before being prompted to connect with Dropbox by entering your login information.
  • The connection will be established successfully once you sign in with Dropbox, and you will be redirected to the Connection Summary details page in Sigma.
  • To access this connection as part of an extension, you’ll need to configure the sample code provided under the JSON section in the plugin-manifest.json file. We’ll explore this in the next section.

2. Extension configuration

Now that we've successfully established our connection, let's look at how we can achieve our use case feature of displaying the Dropbox file request folder within the Zoho Projects task detail page. As mentioned earlier, to accomplish this, we’ll need to implement the following measures.
A. Create an extension

B. Configure the plugin-manifest.json file

C. Set up the widget code
Let's explore these steps in order.

A. Create an extension
B. Configure the plugin-manifest.json file
  • As previously stated, to access the connection established between Zoho Projects and Dropbox, the connection must first be configured in the plugin-manifest.json file.
  • Copy the JSON sample code from the Connection Summary Details page and paste it into the plugin-manifest.jsonfile as the value for the connections key.

  • You will also need to white list the Dropbox domain for Dropbox calls to be processed without being blocked.
  • Include the domain in the plugin-mainfest.json file as the value for the whiteLitsedDomains key.

  • As we saw in our earlier post, the plugin-manifest.json file includes a widget called Projects Extension by default. For our example, because we’re connecting with Dropbox and constructing a widget that will include Dropbox request folders to upload files, enter the widget name and location.

  • The final configured plugin-manifest.json file for our example would be as follows:
  1. {
  2. "connectors": [{
  3. "connectionLinkName": "dropbox",
  4. "userAccess": true,
  5. "sharedBy": "xxxxxxx",
  6. "connectionName": "dropbox",
  7. "serviceName": "dropbox",
  8. "isUserDefinedService": false
  9. }],
  10. "whiteListedDomains": ["https://api.dropboxapi.com"],
  11. "service": "PROJECTS",
  12. "cspDomains": {
  13. "connect-src": []
  14. },
  15. "storage": true,
  16. "locale": ["en"],
  17. "config": [],
  18. "modules": {
  19. "widgets": [{
  20. "name": "Dropbox - File Upload",
  21. "location": "taskdetails_rightpanel",
  22. "url": "/app/dropbox.html"
  23. }],
  24. "triggers": []
  25. }
  26. }

C. Setting up the widget code

Now, that we’ve created an extension and configured the plugin manifest file, let's finally set up the widget code in order to display all Dropbox file request folders inside our task details right panel.

Dropbox.html widget code: Please find the widget code snippet as an attachment in this post.
  • In this widget code, we’ve invoked the Dropbox API to list file request folders by constructing and passing the required data along with the connection we had established for Dropbox.
  • The API will be invoked and return all of the file request folders in the task details right panel, from which users can click on the link and directly upload files to Dropbox from within a task in Zoho Projects itself.
Sample output
  • Once the code is setup, publish and install the extension to check the functionality in the Zoho Projects portal.
  • Enter a task and click the extensions icon in the right panel.

  • From the lists of your Dropbox file requests, select the requests to which you wish to upload files.

  • The file will be successfully uploaded in the respective Dropbox file request.


We’ve demonstrated how to upload files directly to Dropbox file request folders from within Zoho Projects in this example. As part of your extension, you can use the Connections feature to do a variety of tasks, some of which are highlighted below.
  • View and update files associated with a certain request.
  • Create Dropbox folders and share them with collaborators.

Connections, therefore serves as a powerful tool that assists you in establishing a connection with other apps and performing smooth data transactions across your applications, thereby improving business functions and optimizing your work.

We hope this information was useful to you. Continue to follow us for further updates!

Sign up for a Zoho Developer account and start developing extensions for Zoho products using Sigma.

SEE ALSO


Next>>

    • Recent Topics

    • Introducing Connected Records to bring business context to every aspect of your work in Zoho CRM for Everyone

      Hello Everyone, We are excited to unveil phase one of a powerful enhancement to CRM for Everyone - Connected Records, available only in CRM's Nextgen UI. With CRM for Everyone, businesses can onboard all customer-facing teams onto the CRM platform to

    • Is Zoho Communityspaces now part of Zoho One?

      Is Zoho Communityspaces now part of Zoho One?

    • How to update "Lead Status" to more than 100 records

      Hello Zoho CRM, How do I update "Lead Status" to more than 100 records at once? To give you a background, these leads were uploaded or Imported at once but the lead status record was incorrectly chosen. So since there was a way to quickly add records in the system no matter how many they are, we are also wondering if there is a quicker way to update these records to the correct "Lead Status". I hope our concern makes sense and that there will be a fix for it. All the best, Jonathan

    • Bigin’s 2025 Evolution: Highlights from 2025 and What’s Ahead in 2026

      Dear Biginners, Wishing you a very happy New Year! As we stand at the cusp of endless possibilities in 2026, we would like to take a moment to reflect on what we achieved together in 2025. Your continued support, thoughtful feedback, and kind words of

    • Automatically CC an address using Zoho CRM Email Templates

      Hi all - have searched but can't see a definitive answer. We have built multiple email templates in CRM. Every time we send this we want it to CC a particular address (the same address for every email sent) so that it populates the reply back into our

    • Send Supervisor Rule Emails Within Ticket Context in Zoho Desk

      Dear Zoho Desk Team, I hope this message finds you well. Currently, emails sent via Supervisor Rules in Zoho Desk are sent outside of the ticket context. As a result, if a client replies to such emails, their response creates a new ticket instead of appending

    • Zoho Desk - Change Time Zone for all users and set default for new user

      Hi,   Is there a way to set a default time zone so that when user creates an account via the Zoho Desk invitation, they don't need to select the time zone via the hundreds of choice?   And, for already created users, can we edit the incorrect time zone selected by the user at the account creation ?   Thanks ! Fred

    • Introducing WhatsApp integration in Bigin

      Greetings! In today's business landscape, messaging apps play a significant role in customer operations. Customers can engage with businesses, seek support, ask questions, receive personalized recommendations, read reviews, and even make purchases—all

    • Why is Zoho Meeting quality so poor?

      I've just moved from Office 365 to Zoho Workplace and have been generally really positive about the new platform -- nicely integrated, nice GUI, good and easy-to-understand control and customisation, and at a reasonable price. However, what is going on

    • Allow Manual Popup Canvas Size Control

      Hello Zoho PageSense Team, We hope you're doing well. We would like to request an enhancement to the PageSense popup editor regarding popup sizing. Current Limitation: Currently, the size (width and height) of a popup is strictly controlled by the selected

    • Why does Zoho’s diff viewer highlight parts of unchanged lines?

      Hi everyone, I’ve noticed something odd in the Zoho editor’s diff view. When I delete a single line, the diff doesn’t just mark that line as removed. Instead, it highlights parts of the next line as if they changed, even though they are identical. Example:

    • All new Address Field in Zoho CRM: maintain structured and accurate address inputs

      The address field will be available exclusively for IN DC users. We'll keep you updated on the DC-specific rollout soon. It's currently available for all new sign-ups and for existing Zoho CRM orgs which are in the Professional edition. Latest update

    • CRM x WorkDrive: File storage for new CRM signups is now powered by WorkDrive

      Availability Editions: All DCs: All Release plan: Released for new signups in all DCs. It will be enabled for existing users in a phased manner in the upcoming months. Help documentation: Documents in Zoho CRM Manage folders in Documents tab Manage files

    • Wrapping up 2025 on a high note: CRM Release Highlights of the year

      Dear Customers, 2025 was an eventful year for us at Zoho CRM. We’ve had releases of all sizes and impact, and we are excited to look back, break it down, and rediscover them with you! Before we rewind—we’d like to take a minute and sincerely thank you

    • Passing the CRM

      Hi, I am hoping someone can help. I have a zoho form that has a CRM lookup field. I was hoping to send this to my publicly to clients via a text message and the form then attaches the signed form back to the custom module. This work absolutely fine when

    • Where can we specify custom CSS in Zoho Forms custom theme ?

      I'm using a form with a dark theme. The OTP popup window is unreadable, because for some reason, the OTP popup background fixes color to white, but still takes the font color specified in the custom theme. This ends up as white on white for me, rendering

    • Automating Employee Birthday Notifications in Zoho Cliq

      Have you ever missed a birthday and felt like the office Grinch? Fear not, the Cliq Developer Platform has got your back! With Zoho Cliq's Schedulers, you can be the office party-cipant who never forgets a single cake, balloon, or awkward rendition of

    • Drop Down Value

      Hi, May I know why Zoho Flow treat this drop down as number and not as string. If so, how can I fetch the right value for filtering. This field is from Creator, in Creator upon checking by default it is a string since it's not a lookup field.

    • Create PO from an invoice

      We are a hardware and software sales company which receives orders over the internet. We drop ship most of our products from a warehouse outside of our company. Our orders get sync'd into Zoho from our store via onesaas as invoices. It would be great

    • SMS to customers from within Bigin

      Hi All, Is there anyone else crying out for Bigin SMS capability to send an SMS to customers directly from the Bigin interface? We have inbuilt telephony already with call recordings which works well. What's lacking is the ability to send and receive

    • Zoho Survey reminder settings are extremely confusing

      Hi, I just want to set 3 reminders, one week apart from the first email out. Your form is too confusing and I don't understand. Can you simplify and be more specific regarding the language used on the form ?

    • Add deluge function to shorten URLs

      Zoho Social contains a nice feature to shorten URLs using zurl.co. It would be really helpful to have similar functionality in a Deluge call please, either as an inbuilt function or a standard integration. My Creator app sends an email with a personalised

    • Add specific field value to URL

      Hi Everyone. I have the following code which is set to run from a subform when the user selects a value from a lookup field "Plant_Key" the URL opens a report but i want the report to be filtered on the matching field/value. so in the report there is

    • form data load issue when saving as duplicate record is made

      Hello. I have a form with a lookup when a value is selected the data from the corresponding record is filled into all of the fields in the form. But the form is loaded in such a state that if any value is changed it will take all of the values pre loaded

    • Recurring Tasks and Reminders in Projects

      Recurring tasks are tasks that are created once, and then recreated automatically after a designated time period. For example, the invoice for your billable tasks is due every week. You can set that task to recreate itself every week. Also, the future

    • Unable to remove the “Automatically Assigned” territory from existing records

      Hello Zoho Community Team, We are currently using Territory Management in Zoho CRM and have encountered an issue with automatically assigned territories on Account records. Once any account is created the territory is assigned automatically, the Automatically

    • Track online, in-office, and client location meetings separately with the new meeting venue option

      Hello everyone! We’re excited to announce meeting enhancements in Zoho CRM that bring more clarity and structure to how meetings are categorized. You can now specify the meeting venue to clearly indicate whether a meeting is being held online, at the

    • Google Fonts Integration in Pagesense Popup Editor

      Hello Zoho Pagesense Team, We hope you're doing well. We’d like to submit a feature request to enhance Zoho Pagesense’s popup editor with Google Fonts support. Current Limitation: Currently, Pagesense offers a limited set of default fonts. Google Fonts

    • Improved Contact Sync flow in Google Integration with Zoho CRM

      Hello Everyone, Your contact sync in Google integration just got revamped! We have redesigned the sync process to give users more control over what data flows into Google and ensure that this data flows effortlessly between Zoho CRM and Google. With this

    • CRM Canvas - Upload Attachments

      I am in the process of changing my screens to Canvas.  On one screen, I have tabs with related lists, one of which is attachments.  There doesn't appear to be a way to upload documents though.  Am I missing something really obvious?  Does anyone have

    • Pro Lite Upgrade - Quick Access Tray

      Hello, I was going to upgrade to Pro Lite but the Quick Access Tray feature isn't available for Windows. Of the four features not available for Windows, the QAT is what I'm most interested in. Are there plans to add this feature for Windows anytime soon?

    • Custom Fonts in Zoho CRM Template Builder

      Hi, I am currently creating a new template for our quotes using the Zoho CRM template builder. However, I noticed that there is no option to add custom fonts to the template builder. It would greatly enhance the flexibility and branding capabilities if

    • Improved Functionality PO Bill SO Invoice

      Hello, I need to enter over 100 items, it's frustrating to scroll a few item rows and wait for more to load, then scroll again. It would be nice to have buttons that scroll to the top or bottom with one click. Furthermore, these items I'm adding are VAT

    • Camera access

      My picture doesn't appear in a group discussion. (The audio is fine.) The guide says "Click the lock icon on address bar," but I can't find it. Advise, please

    • Wishes for 2026

      Hello, and a happy new year 2026! Let's hope it's better for everyone. I'd like to share some thoughts on Zoho One and what could be useful in the short, medium, and long term. Some things are already there, but not applied to Zoho One. Others seem like

    • How to Integrate Zoho Books with Xero (No Native Connection Available)

      Hi everyone, I’m currently facing an issue with integrating Zoho Books invoices with Xero, as I’ve noticed Zoho does not provide a native integration with Xero at this time. I would like to ask: What are the common or recommended solutions for syncing

    • How to install Widget in inventory module

      Hi， I am trying to install a app into Sales Order Module related list, however there is no button allow me to do that. May I ask how to install widget to inventory module related list?

    • Picklist field shows "none" as default

      Hello, Is there an option to avoid showing "none" as the default value in a picklist field? I also don't want to see any option displayed. My expectation is to have a blank bar, and then when I display the drop-down list, I can choose whichever I wa

    • error while listing mails

      I can't access email in any of my folders: Oops, an error occurred - retry produces the second error response: error while listing mails (cannot parse null string). I've signed in and out of Zoho, restarted my iMac.

    • Unlocking New Levels: Zoho Payroll's Journey in 2025

      Every year brings its own set of challenges and opportunities to rethink how payroll works across regulations and teams. In 2025, Zoho Payroll continued to evolve with one clear focus: giving businesses more flexibility, clarity, and control as they grow.

    • Next Page