Extension Pointers #7: Build third-party integrations by incorporating Custom variables into Widgets

Extension Pointers #7: Build third-party integrations by incorporating Custom variables into Widgets

There are currently a number of third-party applications that can be integrated with Zoho CRM to help improve the existing functionality of the product. Amongst this diverse collection, there are certain applications that only support API key forms for user authentication. If the third-party application that you choose to integrate supports API key forms, Custom variables are the best way to integrate with Zoho CRM. Custom variables are of major importance in scenarios where data needs to be globally accessed across an entire extension, as well as during third-party integrations where security-related, user-specific data needs to be passed in order to establish a successful integration.

Just as custom variables help to integrate Zoho CRM with third-party applications, widgets are built-in UI components that help you customize your own UI interface and perform certain functions using third-party data.

In this post, we'll look at how to use custom variables while building widgets, in order to synchronize the third-party data seamlessly into Zoho CRM components in a personalized format.

Consider, for example, a widget that needs to display the services and technologies of the company to which a Zoho CRM lead belongs. These details help to target and serve the leads based on a data-driven approach, and thereby run b2b marketing efficiently. In our example, Clearbit is the third-party application that is used as a source of data enrichment.

Let's go through the steps to achieve the above-mentioned functionality.

Create a Custom Variable to store the API key value

In order to establish a connection with the Clearbit application and retrieve its data, we first need to register with Clearbit and obtain the API Secret Key. Upon successful acquisition of the API Key, we'll create a custom variable to store its value in the extension.

1. Go to the Extension's Detail page in Zoho Developer Console.
2. Choose Custom Properties from the left panel of the Zoho Developer console under Build, then click Create your first CRM variable.



3. Provide the Custom Variable Name and the Clearbit API secret key as the value.
4. Click Save.


The custom variable "API Key" will be created with an auto-generated API name.
Note: clearbitextension__API_Key is the API Name in our example.



Create a widget that fetches the details of a company
  • Create a widget called "ClearbitProject" in ZET CLI. 
  • Add the necessary HTML and CSS files (handle the UI) along with the JS file (business logic) to get the company details of the lead. Refer here to check out the step-by-step guide to create a widget in ZET CLI . 

  • Add the ZohoEmbeddedAppSDK.min.js file (available here) to use the JS SDKs that are needed for your project.
  • Please refer to JS SDK for information on the different Zoho CRM APIs supported by the SDK. These APIs are significant in helping the Javascript code interact with Zoho CRM.


Clearbit.js code snippet
 var comp;
 var json;
 var jsonObj;
 var orgVal;
 function initializeWidget()
 {  
 // PageLoad listener that returns the entity details of the active page
 ZOHO.embeddedApp.on("PageLoad",function(data)
 {
 console.log("inside function");
 id = data.EntityId;
 console.log("id===="+id);
 entity = data.Entity;
 // Get the record details of the entity using the value returned by pageload listener
 ZOHO.CRM.API.getRecord({
 Entity: entity,
 RecordID: id
 }).then(function(data) {
 // Fetch the company detail from the response obtained through getRecord API 
 var recorddata= data.data[0];
 comp=recorddata.Company;
 // Get the API Key detailsfrom the custom variable 
 ZOHO.CRM.API.getOrgVariable("clearbitextension__API_Key").then(function(data){
 org=data.Success;
 //Store the API key value to a variable based on the format required by Clearbit API  
 orgVal="Bearer "+org.Content;
 })
 setTimeout(function(){
 // Construct the params as required by Clearbit API
 var request ={
 headers:{
 Authorization : orgVal,
 }
 }
 // Invoke HTTP get to receive the response of the initiated request i.e the Clearbit API  call
 ZOHO.CRM.HTTP.get(request).then(function(data) {
 jsonObj = JSON.parse(data);
 console.log(jsonObj);
 respPrint(jsonObj);
 })
 },500)
 })  
 })
 // Extract the required information from Clearbit API response and format  the data in UI
 function respPrint(jsonObj){
 jsonObj.tags.map(function(value,index){
 var sub_list = document.createElement('div');
 sub_list.classList.add('sub-list');
 sub_list.innerText = value;
 document.getElementById('list_tags').appendChild(sub_list);
 });
 jsonObj.techCategories.map(function(value,index){
 var sub_list = document.createElement('div');
 sub_list.classList.add('sub-list');
 sub_list.innerText = value;
 document.getElementById('list_technologies').appendChild(sub_list);
 });
 }
 ZOHO.embeddedApp.init();
 }

Multiple Zoho CRM APIs are a part of the above-mentioned Clearbit Javascript code snippet. Collectively, these APIs help to implement the business logic of retrieving the company details of the selected lead. Let's take a look at these APIs.

ZOHO.embeddedApp.on("PageLoad",function(data)) - An event listener that is triggered whenever an entity Page (Details Page) is loaded.
ZOHO.CRM.API.getRecord(config) - API that gets all details of a record when providing the entity and record ID information.
ZOHO.CRM.API.getOrgVariable()- API that returns the data with respect to the custom variable passed to it.
ZOHO.CRM.HTTP.get(request) - The API invokes HTTP GET and returns a response based on the request object passed to it as a parameter. The request object is constructed as a combination of request params and request headers of the respective API.
  • In our example, PageLoad listener is used to fetch the entity and ID of the record in an active page. Upon passing the retrieved entity and ID to the getRecordAPI, the complete record information is gathered, from which we fetch the company name of the selected lead.
  • The retrieved company's name is passed to the URL call as the domain, along with the headers required by Clearbit API. This is bundled together and constructed as the request parameter for the HTTP GET API.
  • The HTTP GET API is invoked, and it returns the response (enriched company details) based on the request parameter.
  • Finally, the required data is extracted from the response and displayed in the widget UI, as per your requirement.
After adding all the necessary files, validate and pack the project.

Associate the widget with a connected app and host it

After successfully building the widget, we can now associate it with a connected app in the extension.

1. Choose Connected Apps from the left panel of the Zoho Developer console, under Utilities.
2. Provide the necessary details for the Connected App. Upload the ClearbitProject.zip file from the dist folder and click Save.




Embed the widget as a related list in Zoho CRM

Now that the widget is associated with a connected app, let's embed it inside Zoho CRM. In our example, we'll embed the widget as a related list called Company Enriched Data in the Leadsmodule.

1. Choose Components from the left panel of the Zoho Developer console, under Build.
2. Choose the Related Details tab and select Add Widgets.
3. Provide the necessary details, choose the "Leads" module, and click Save.



4. Test the widget's functionality locally in an isolated sandbox environment using Test your Extension option.
Note: It's important to keep the localhost running in ZET CLI using the zet run command.

In the sandbox environment:

1. Click the Leads module and choose a lead. Here, we have chosen the lead "TestCustomer New" belonging to the company "Microsoft".



2. Select the related list Company Enriched Data that includes our ClearbitProject widget.



The resulting data of the ClearbitProject widget, namely the services, tags, and technologies offered by Microsoft, to which our lead "TestCustomer New" belongs, will be populated and displayed .

Note: As part of the development process of the extension, we have set the value of the custom variable "API Key" with the API secret key obtained. After development, when planning to publish and share the extension either publicly or privately, it's important to make sure that the value is set empty to ensure that users provide their own secret API key while installing the extension.Refer here to learn more about handling custom variables.



With these steps, custom variables can be incorporated into widgets to perform third-party integrations. You can alter and enhance the widget's functionality as per your requirement. Keep following this space for more info!

SEE ALSO








        • Recent Topics

        • ZOHO Creator subform link

          Dear Community Support, I am looking for some guidance on how to add a clickable link within a Zoho Creator subform. The goal is for this link to redirect users to another Creator form where they can edit the data related to the specific row they clicked
        • Allow Resource to Accept or Reject an Appointment

          I have heard that this can be done, is there any documentation on how?
        • Create new Account with contact

          Hi I can create a new Account and, as part of that process, add a primary contact (First name, last name) and Email. But THIS contact does NOT appear in Contacts. How can I make sure the Contact added when creating an Account is also listed as a Contact?
        • 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
        • 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
        • Sync desktop folders instantly with WorkDrive TrueSync (Beta)

          Keeping your important files backed up and accessible has never been easier! With WorkDrive desktop app (TrueSync), you can now automatically sync specific desktop folders to WorkDrive Web, ensuring seamless, real-time updates across devices. Important:
        • How To Insert Data into Zoho CRM Organization

          Hi Team I have this organization - https://crm.zoho.com/crm/org83259xxxx/tab/Leads I want to insert data into this Leads module, what is the correct endpoint for doing so ? Also I have using ZohoCRM.modules.ALL scope and generated necessary tokens.
        • Where can I get Equation Editor por Zoho Writer?

          I need to use Math Formulas in my document. Thank you.
        • Filtering repport for portal users

          Salut, I have a weird problem that I just cannot figure out : When I enter information as administrator on behalf of a "supplier" portal user (in his "inventory" in a shared inventory system), I can see it, "customer" portal users can see it, but the
        • I want to add my other zoho account in same pc

          why does zoho restrict me doing many things as i also want to add my second mail account bit its not allowing me to do that
        • Zoho Inventory. Preventing Negative Stock in Sales Orders – Best Practices?

          Dear Zoho Inventory Community, We’re a small business using Zoho Inventory with a team of sales managers. Unfortunately, some employees occasionally overlook stock levels during order processing, leading to negative inventory issues. Is there a way to
        • Sorten the domain of zoho mail ids

          I recently created zoho mail id and am quite excited with the features. But one issue ig nobody wanna type this big zohoaccounts.com I mean silly bold Suggestion zmail.com (sound gmail) (attraction) or some genz words looks cool
        • Request for Creating Multiple Email Accounts on One Mobile Number

          Dear Zoho Team, I am planning to shift all my work-related communication to Zoho Mail because of its reliability and features. For my work, I need to create 3–4 separate email accounts for different purposes. Could you please confirm if it is possible
        • BUTTONS SHOWN AS AN ICON ON A REPORT

          Hi Is there any way to create an action button but show it as an icon on a report please? As per the attached example? So if the user clicks the icon, it triggers an action?
        • Dropshipping Address - Does Not Show on Invoice Correctly

          When a dropshipping address is used for a customer, the correct ship-to address does not seem to show on the Invoice. It shows correctly on the Sales Order, Shipment Order, and Package, just not the Invoice. This is a problem, because the company being
        • RFQ MODEL

          A Request for quotation model is used for Purchase Inquiries to multiple vendors. The Item is Created and then selected to send it to various vendors , once the Prices are received , a comparative chart is made for the user. this will help Zoho books
        • Will zoho thrive be integrated with Zoho Books?

          title
        • Product Updates in Zoho Workplace applications | August 2025

          Hello Workplace Community, Let’s take a look at the new features and enhancements that went live across all Workplace applications this August. Zoho Mail Delegate Email Alias Now you can let other users send emails on your behalf—not just from your primary
        • Unable to send message; Reason:554 5.1.8 Email Outgoing Blocked

          Hi, I sent few emails and got this: Unable to send message; Reason:554 5.1.8 Email Outgoing Blocked And now I have few days since I cant send any email. Is there something wrong I did? Also can someone fix this please
        • Want to use Zoho Books in Switzerland. CHF support planned?

          Hi, We're a Swiss company using other Zoho suite software and I discovered Zoho Books and other accounting SaaS when looking for an accounting tool. Do you intend to cover Switzerland and CHF based accounting anytime soon? Roy
        • Weekly Tips : Teamwork made easy with Multiple Assignees

          Let's say you are working on a big project where different parts of a single task need attention from several people at the same time—like reviewing a proposal that requires input from sales, legal, and finance teams. Instead of sending separate reminders
        • Best way to share/download presentation files in Zoho without losing formatting?

          Hello Zoho Community, I often work with PPT/PDF files in Zoho Docs and share them with colleagues. While PDFs usually give a direct download option, I’ve noticed that PPT/PPTX files sometimes only open in the viewer without a clear download link. Is there
        • Celebrating Connections with Zoho Desk

          September 27 is a special day marking two great occasions: World Tourism Day and Google’s birthday. What do these two events have in common (besides the date)? It's something that Zoho Desk celebrates, too: making connections. The connect through tourism
        • What is Resolution Time in Business Hours

          HI, What is the formula used to find the total time spent by an agent on a particular ticket? How is Resolution Time in Business Hours calculated in Zohodesk? As we need to find out the time spent on the ticket's solution by an agent we seek your assistance
        • How use

          Good morning sir I tried Zoho Mail
        • Adding Overlays to Live Stream

          Hello folks, The company I work for will host an online event through Zoho Webinar. I want to add an overlay (an image) at the bottom of the screen with all the sponsors' logos. Is it possible to add an image as an overlay during the live stream? If so,
        • Email Sending Failed - SMTP Error: data not accepted. - WHMCS Not sending emails due to this error

          I have been trying to figure out a fix for about a week now and I haven't found one on my own so I am going to ask for help on here.  After checking all the settings and even resetting my password for the email used for WHMCS it still says: Email Sending Failed - SMTP Error: data not accepted.  I have no clue how to fix it at this point. Any insight would be lovely. 
        • Does Zoho Learn integrate with Zoho Connect,People,Workdrive,Project,Desk?

          Can we propose Zoho LEarn as a centralised Knowledge Portal tool that can get synched with the other Zoho products and serve as a central Knowledge repository?
        • Zoho Flow - Update record in Trackvia

          Hello, I have a Flow that executes correctly but I only want it to execute once when a particular field on a record is updated in TrackVia. I have the trigger filters setup correctly and I want to add an "update record" action at the end of the flow to
        • Add Comprehensive Accessibility Features to Zoho Desk Help Center for End Users

          Hello Zoho Desk Team, We hope you're doing well. We’d like to submit a feature request to enhance the client-facing Help Center in Zoho Desk with comprehensive accessibility features, similar to those already available on the agent interface. 🎯 Current
        • Rename Record Summary PDF in SendMail task

          So I've been tasked with renaming a record summary PDF to be sent as part of a sendmail task. Normally I would offer the manual solution, a user exports the PDF and uploads it to a file upload field, however this is not acceptable to the client in this
        • in zoho creator Sales Returns form has sub form Line Items return quantity when i upate the or enter any values in the sub form that want to reflect in the Sales Order form item deail sub form field Q

          in zoho creator Sales Returns form has sub form Line Items return quantity when i upate the or enter any values in the sub form that want to reflect in the Sales Order form item deail sub form field Quantity Returned\ pls check the recording fetch_salesorder
        • Estimates with options and sub-totals

          Hi It seems it would be great to be able to show multiple options in an estimate. For instance I have a core product to which I can add options, and maybe sub-options... It would be great to have subtotals and isolate the core from the not compulsory items. Thanks
        • Optional Items Estimate

          How do you handle optional items within an estimate? In our case we have only options to choose with. (Like your software pricing, ...standard, professional, enterprise) How can we disable the total price? Working with Qty = 0 is unprofessional....
        • Important Update : Zendesk Sell announced End of Life

          Hello Zendesk users, Zendesk has officially announced that Zendesk Sell will reach its End of Life (EOL) on August 31, 2027 (Learn more). In line with this deprecation, Zoho Analytics will retire its native Zendesk Sell connector effective October 1,
        • Zoho Sheets

          Hi, I am trying to transition into Zoho sheets, I have attached the issues encountered. Server issues, file trying to upload for more than 30 mins, even once uploaded my data aren't loaded. Simple calculations are not working I have attached the sample.
        • Zoho CRM + Zoho FSM : alignez vos équipes commerciales et techniques

          La vente est finalisée, mais le parcours client ne fait que commencer ! Dans les entreprises orientées service, conclure une vente représente seulement la première étape. Ce qui suit — installation, réparation ou maintenance régulière — influence grandement
        • Top Bar Shifting issue still not fixed yet

          I mentioned in a previous ticket that on Android, the top bar shifts up when you view collections or when you're in the settings. That issue still hasn't been fixed yet. I don't wanna have to reinstall the app as I've noticed for some reason, reinstalling
        • Power of Automation:: Automate the process of updating project status based on a specific task status.

          Hello Everyone, Today, I am pleased to showcase the capabilities of a custom function that is available in our Gallery. To explore the custom functions within the Gallery, please follow the steps below. Click Setup in the top right corner > Developer
        • Attention API Users: Upcoming Support for Renaming System Fields

          Hello all! We are excited to announce an upcoming enhancement in Zoho CRM: support for renaming system-defined fields! Current Behavior Currently, system-defined fields returned by the GET - Fields Metadata API have display_label and field_label properties
        • Next Page