Creating and configuring custom service connections in Bigin Toppings

Creating and configuring custom service connections in Bigin Toppings

Hello Biginners,

Integrating Bigin with external applications extends its capabilities and enables customized functionalities. In our last post, we saw how to create a default service connection. Today, we'll see how to create a custom service connection when the application you need to integrate with isn't listed in the default services.

Consider a scenario where a team uses Bigin to manage its tasks and handles project tracking and collaboration in Trello. Keeping both the applications synchronized can be a challenging task and often requires manual data entry, which increases the risk of errors. To solve this challenge, we can create a Bigin topping with a custom service connection established with the Trello application. Using this custom service connection, we can automate the process by creating a new card inside Trello each time a new task is created in Bigin.

Let's learn how to do this.

Setting up the topping

A topping needs to be created using the Bigin Developer Center; for detailed instructions on creating a topping, refer to this post.

Once you've created the topping and accessed the Bigin Developer Console, the next steps are creating the custom service connection and configuring the topping's functionality.
  1. Navigate to the Connections section in the left panel and click the Get Started button.
  1. Under the Services section, select Custom Services, then click Create Service.
  1. Fill in the required details for the custom service in the configuration screen.
  1. Enter a name for the custom service connection under Service Name; this will automatically generate the service link name.
  2. Select the appropriate authentication type supported by the third-party application from the available options: API key, Basic Authentication, OAuth 1, OAuth 2, or AWS signature.
Notes
Note:

Refer to the official API documentation of the third-party application to determine the authentication type.
  1. Each authentication type has its own set of parameters to ensure secure integration with the third-party app. For detailed instructions on configuring each authentication type and field, refer to this guide.
  2. For integrating with Trello, we'll choose API Key, which is the authentication type supported by the Trello app. For more information on getting your API key and token, refer to the Trello API documentation. Trello requires an API key and token to authenticate with another app. They have to be configured as query parameters, so set the parameter type to Query String.
  3. In the Parameter Key fields, enter the key and token, and set their corresponding Parameter Display Names to Trello API Key and Trello Token respectively.
Notes
Note:

Providing both the key and token is essential because Trello requires these two credentials for secure API access.
The key is the unique identifier for your application, and the token is a user-specific credential that authorizes our application to access and modify Trello data.
  1. Once all the required parameters are configured, click Create Service.

After successfully creating the custom service, the next step is to establish the connection with the Trello service by clicking the Create Connection button.

  1. On the following screen, provide a connection name for your Trello integration; this name will automatically generate the Connection Link Name.
  2. Once you've entered the necessary details, click the Create And Connect button to start the connection process.
  1. You'll be prompted to authenticate your Trello account using the API key and token you got from the Trello API documentation.
  2. After entering these credentials, click Connect to authenticate and integrate your Trello account with the custom service you have created.
  1. Once the connection is established, you'll be redirected back to the Bigin Developer Console. Here, you can view the details of your custom service connection, including the connection link name, confirming that the integration with Trello is active and ready for use.

This connection link name serves as a unique identifier for your integration and will be referenced in the Deluge code.

You'll also need to create a default service connection with Bigin with the scope ZohoBigin.modules.tasks.ALL to access Task details from your Bigin account.



The next step is to set up a workflow rule to automate the card creation process. This workflow will trigger whenever a new task is created in Bigin to create a corresponding card in Trello. To do this, a custom function needs to be associated with the workflow.

To configure the workflow, navigate to the Automate section in the left panel of the Bigin Developer Console and select Workflow. Create a new workflow rule within the Tasks module, setting the trigger to activate whenever a new task is created in Bigin. For the trigger condition, choose to apply the workflow to All tasks to ensure every new task initiates the automation.

Next, associate the workflow rule with a function by selecting the Function option from the Instant Actions menu.


After providing the required function details, you'll be redirected to the Deluge editor, where you can implement the logic for creating a new Trello Card.



In the Deluge code:
  1. Retrieve the details of the newly created task from Bigin using its Task ID.
  2. Extract relevant task data such as the subject (used as the task name) and description.
  3. Identify the target Trello board and the specific list where the card should be created.
  4. Fetch all lists from the Trello board and locate the list ID that matches the desired list name. For our use case, we'll be creating the task as a card in the Trello list named "Today" so that the task created on that specific day will fall under the Today list. Later, it can be moved across other lists in Trello as its status updates.
  5. Prepare the card details using the extracted task information and the identified list ID.
  6. Create a new card in Trello using the prepared details.
The code below implements the logic for automatically creating a Trello card whenever a new task is created in Bigin.
  1. // Step 1: Get task details from Bigin
  2. taskDetails = zoho.bigin.getRecordById("Tasks",task.get("Tasks.ID"),Map(),"biginandtrello__biginconnection");
  3. // Step 2: Extract task data
  4. taskData = taskDetails.get("data").get(0);
  5. taskName = taskData.get("Subject");
  6. taskDescription = taskData.get("Description");
  7. // Step 3: Trello board and target list name
  8. boardId = "KQMtdnPX";
  9. targetListName = "Today";
  10. // Step 4: Get all lists on Trello board
  11. listsResponse = invokeurl
  12. [
  13. url :"https://api.trello.com/1/boards/" + boardId + "/lists"
  14. type :GET
  15. connection:"biginandtrello__trello"
  16. ];
  17. // Step 5: Find the list ID by name
  18. listId = "";
  19. for each listItem in listsResponse
  20. {
  21. if(listItem.get("name") == targetListName)
  22. {
  23. listId = listItem.get("id");
  24. break;
  25. }
  26. }
  27. // Step 6: Check if list exists
  28. if(listId == "")
  29. {
  30. info "List with name '" + targetListName + "' not found.";
  31. return;
  32. }
  33. // Step 7: Prepare Trello card details
  34. cardDetails = Map();
  35. cardDetails.put("name",taskName + " - From Bigin");
  36. cardDetails.put("desc",taskDescription);
  37. cardDetails.put("idList",listId);
  38. // Step 8: Create Trello card
  39. createCardResponse = invokeurl
  40. [
  41. url :"https://api.trello.com/1/cards"
  42. type :POST
  43. parameters:cardDetails
  44. connection:"biginandtrello__trello"
  45. ];
  46. // Step 9: Log Trello response
  47. info "Trello card creation response: " + createCardResponse;

For details about the API endpoints and request formats used in this code, refer to the Bigin Deluge reference library and Trello API documentation.
Now, let's test whether the topping is functioning as expected. To test the topping, click Test your Topping on the top right of the Bigin Developer Console.


You can test the topping by creating a new Task in your Bigin Sandbox account and then checking your Trello account to see if a new card is created in the specified list.



In this post, We've successfully created a custom service connection between Bigin and Trello!

By using custom service connections, you can securely integrate third-party applications with Bigin and achieve your business's use cases.

Stay tuned for more posts where we'll dive deeper into additional features and best practices for developing powerful toppings in Bigin.

<< Previous                                                                                                                                                                            Next>>

    Nederlandse Hulpbronnen


      • Recent Topics

      • mail did't send for particular email

        mail did't send for particular email
      • Group settings in Zoho Mail: Manage members, moderation, and spam controls for your organization's groups

        When teams rely on group email addresses like team@org.com, hr@org.com, or sales@org.com, managing them without clear controls leads to unapproved senders, flooded inboxes, and no accountability over what gets delivered. Zoho Mail's Group settings in
      • Update to Free plan attendee limit

        Hi everyone! A quick update about Zoho Webinar's Free plan. We’ve adjusted the Free plan attendee limit from 100 to 20 attendees. Everything else in your Free plan stays the same; you'll continue to have access to all your existing features. If your webinars
      • Possibility to modify a standard wedget to create my own customized wedget

        Below is the std wedget available for dashboard which is great to show the the overdue, current, and all tasks as well as issues for each team member. My problem is this; The list of users cannot be edited (there are admin users which are not relavant
      • Feature Request: Include Creator-applicable Deluge updates in the Creator Release Notes

        I'd like to put forward a suggestion about how Deluge updates are surfaced to Zoho Creator developers, and I'm hoping the Creator team will consider it. Zoho Creator is built on Deluge. Every workflow, custom function, validation and schedule we write
      • Add home page or dashboard in CRM customer portal

        is it possible to add home page or dashboard in CRM customer portal?
      • Close task on Completion Date entry

        This discussion is similar to my issue: "backdated-task-completion-date" discussion Scenario: A bunch of tasks have been completed. But, they have not been closed. Time goes by You finally get around to closing those tasks Projects assigns the date the
      • Introducing Color and Order Preferences for Blueprint Transitions

        Blueprints exist to improve the efficiency of your company's processes and ensure compliance — but only if your users follow them promptly. More often than not, your users may find it challenging to adopt your processes and follow through on them, especially
      • Groups and Moderation

        Hi, I have set up a Group in my organisation but am having trouble with moderation. The members are a mix of addresses within the organisation and external emails addresses. The issue is how to set moderation to be off whenever any of the members sends
      • Introducing Radio Buttons and Numeric Range Sliders in Zoho CRM

        Release update: 1. 2 March 2026: Currently out for CN, JP, AU and CA DCs (Free and standard editions). For other DCs, this will be released by mid-March. 2. 26 March 2026: CA, SA, AU, JP, CN DCs - Free, Standard, Professional, Enterprise, Ultimate, CRM
      • Zoho CRM Sandbox now supports integrations

        Hello everyone, We are now expanding Zoho CRM Sandbox to support integrations with other Zoho products. You can connect, configure, and validate the behavior of your integrated tools within a safe, isolated environment - testing end-to-end without touching
      • Archiving Contacts

        How do I archive a list of contacts, or individual contacts?
      • Introducing the New Zoho Assist Quick Support Plugin

        We are thrilled to announce the new Zoho Assist Quick Support Plugin, the upgraded and enhanced version of the Zoho Assist Customer Plugin. This new plugin allows organizations and IT administrators to deploy it directly onto their customers’ devices,
      • What's New - June 2026 | Zoho Backstage

        Hello everyone! We’ve rolled out a new set of improvements across Zoho Backstage to help you manage events more efficiently and provide a better experience for your attendees. Take a look at what’s new in this month’s update. Assign attendees later and
      • More Zia AI capabilities are included across additional Zoho Desk editions

        Hello everyone, We are expanding the availability of AI-powered features in Desk to the other paid subscriptions from 7th July 2026. Right now, the following AI-based features are available for Enterprise edition users: Intelligence: Sentiment analysis,
      • Summer release '26 should be called Enterprise Summer Release '26

        Summer release '26 should be called Enterprise Summer Release '26 because almost all updates or the more useful ones, are limited for Enterprise subscriptions. us with Basic or Premium susbcriptions are basically left in the cold.
      • Previous conversation title on new messenger widget translation

        The title of previous conversations title on the new messenger widget personalisation appears in english even when spanish is selected as default language
      • Export Tickets from the Help Center

        Hello everyone! We are now allowing end users to export tickets directly from the help center. The ticket export allows users to: Filter tickets by Department, Priority, and Account before exporting. Download files from Export History (Setup > Data administration
      • Account Duplication Control in Zoho CRM

        The Goal Prevent users from creating duplicate Account records in Zoho CRM. Accounts should be sourced from ERP and synced into Zoho—no. Allow to create Accounts if they don't exist in our ERP. What I've Implemented removed Account creation permissions
      • Error 1011 saving website personalisation — blocking all changes (corrupted "home_page.content" field)

        When trying to save changes under Settings → Brands → MY COMPANY → Website → Personalisation → Messenger, I receive the following error: "Either the request parameters are invalid or absent" upon checking on the developer console of the browser I get
      • Canvas View: Add font family selection (incl. Google Fonts / Hebrew & RTL fonts)

        Hi Zoho CRM team, The Canvas design suite (List View, Tile View, Table View and Record Detail) currently allows customizing font weight, size, color, alignment and case - but there is no option to choose the font family. All text is rendered in the built-in
      • This user is not allowed to add in Zoho. Please contact support-as@zohocorp.com for further details

        Hello, Just signed up to ZOHO on a friend's recommendation. Got the TXT part (verified my domain), but whenever I try to add ANY user, I get the error: This user is not allowed to add in Zoho. Please contact support-as@zohocorp.com for further details I have emailed as well and writing here as well because when I searched, I saw many people faced the same issue and instead of email, they got a faster response here. My domain is: raisingreaderspk . com Hope this can be resolved.  Thank you
      • Issue embedding image Zoho Books email signature

        I am trying to embed my company logo to my email signature using the image url tool on the settings but I keep getting the following error: Enter a valid public image URL I am using a public link from either WorkDrive or OneDrive and I still get the same
      • E-Mail Distribution List

        How do I create an e-mail distribution list in Zoho Mail?
      • Tip #80- Secure Connect: Add an Extra Layer Before You Connect – 'Insider Insights'

        Tip 80 – Secure Connect: Add an Extra Layer Before You Connect – 'Insider Insights' Hello Zoho Assist Community! Picture this: your support team relies on unattended access to keep the business running. Servers need overnight patches. Remote workstations
      • Business Whatsapp is not Showing

        I’ve attached a screenshot from the Zoho CRM Android app when clicked the call button. It is showing Personal WhatsApp, which is not installed on the phone. Also, the installed WhatsApp Business account is not showing.
      • How to access a unified inbox for more than one zoho accounts (using paid workplace services)

        Hello, we are using zoho for a few months and also suggest your services, setting them up for our clients. Several from our clients, our company as well, use more than 1 email addresses. Using the web version, we are only able to add them as accounts
      • Modify a standard wedget to create my own customized wedget ?

        Below is the std wedget available for dashboard which is great to show the the overdue, current, and all tasks as well as issues for each team member. My problem is this; The list of users cannot be edited (there are admin users which are not relavant
      • Advanced Formatted Resume Templates for Applications

        Advanced Formatted Resume Templates can now be created and used directly from the Applications module, with support for application module fields. Until now, Advanced templates were limited to the Candidates module. That meant resumes generated from Applications
      • Zoho Books | Product updates | July 2026

        Hello users, We’re excited to bring you the latest updates in Zoho Books for July 2026! This month's release introduces Terminal Payments, CMP-08 filing for composition taxpayers, SEPA Credit Transfer support, the new Receipts and Payments Report for
      • Boost your CRM communication with new font types, sizes, and default reply-to options while composing emails

        Hello Everyone, We’re excited to introduce a series of impactful enhancements to the email composer settings in Zoho CRM. These updates enable you to personalize and optimize your customer interactions with greater efficiency. So what's new? Add custom
      • Zoho CRM Community Digest - June 2026| Part 2

        Hello Everyone! Welcome to the second half of our June Zoho CRM Community Digest! We are keeping the momentum going with powerful updates to filter out unnecessary email syncs, a revamped CRM Import tool, smarter follow-up updates in cadences, and Zia
      • Migrate from Zoho Mail to G Suite

        I am unable to find any documentation on how one can migrate from Zoho Mail to another platform, like G Suite or Office 365. Please point me to the right documentation. Thank you.
      • Zoho Desk Android app - Option to set an email template as default

        Hello everyone! We have enhanced the Email Template section in our app by introducing the ability to set a template as default directly from the Zoho Desk Android app, making it easier to access your preferred template without repeated manual selection.
      • Zoho Desk Android and iOS app update: Odia Language

        Hello everyone! We have now brought in support to access the Zoho Desk app in Odia language. Please update the app to the latest version directly from the Play Store/ App Store or using the links below: Zoho Desk - Play Store Zoho Desk - App Store Once
      • How to check Leads with no Task (open activity)

        Hi everyone, I was wondering if there’s a way to view leads that don’t have any tasks assigned or open activities linked to them.
      • How do I migrate from Office 365 to Zoho Mail?

        Check out Advik Email Migration Wizard, this software is specially developed to move mailboxes from Office 365 to Zoho Webmail. In addition you can migrate from Gmail, Yahoo, Rediffmail and 80+ webmail servers to ZOHO MAIL. Isn't it amazing? This is an all in one email migration solution. Steps to export emails from Office 365 to Zoho Webmail are as follows; Run Advik Email Migration Tool in your system. Select Office 365 as source and enter its login credentials. Select mailbox folders and choose
      • Bridging the gap between incident management and project delivery

        As an organization, you can have structured backup plans to handle issues that arise during project execution. Despite best efforts, even efficient processes can fall into an escalation trap where a red flag travels up the tiers but no real action follows.
      • Update on default settings for AI features in Cliq

        Hello all, We'd like to provide clarity on a recent change to AI feature defaults in Cliq. As part of our regular review of AI features conducted in April 2026, we re-evaluated how these features are enabled by default. We've decided that the AI features
      • Associate Zoho Billing Invoices with multiple Zoho FSM Work Orders

        Hello Latha, We are writing a custom Deluge automation script in Zoho FSM to handle monthly consolidated billing. The script successfully compiles line items from multiple completed Work Orders, interfaces with the Zoho Billing API, and generates a single
      • Next Page