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.

    • Recent Topics

    • Layout one survey question in a time & redirect next Page based on previous response

      I have doubt while, I am scripting survey on the Zoho where I redirecting to next page based on my previous response but didn’t get success on this. Please help me on this and tell me how I layout one survey questions in a time when I submit response
    • Zoho Bookings form pre-filled with Zoho Forms in

      Hi, I've got a contact page on my website and I'd like to have the option to book an appointment (redirected to zoho bookings page) after an option is submitted on the contact form. how would I go about doing this? thanks
    • Support “Other” Option with Free Text in Dropdown Fields

      Hello Zoho Bookings Team, Greetings, We would like to request an enhancement to the registration form fields in Zoho Bookings, specifically for dropdown fields. Current Limitation: At the moment, dropdown fields do not support an “Other” option that allows
    • Detailed Balance Sheet for tax preparer

      I'm using the free edition of Zoho Books. My tax preparer is asking for "detailed" Profit & Loss and Balance Sheet reports which include all the activity and transactions within the various categories. The default reports do not include these details.
    • Sending automated messages that appear in the ticket's conversation thread

      Good morning, esteemed Zoho Desk community, warm greetings Today I am here to raise the following problem, seeking a solution that I can implement: I need to implement an automation that allows me to send reminder messages to customers when I am waiting
    • Payment Card or Identity form-fill from Vault?

      Hello! I'm working on replacing Bitwarden with Vault and one issue I've run into is that I can't find any option to fill address and payment forms from Payment Card or Identity info that has been saved in Vault. Is there a way to do this? Is it a planned
    • Ability to add VAT to Retainer Invoices

      Hello, I've had a telephone conversation a month ago with Dinesh on this topic and my request to allow for the addition of VAT on Retainer Invoices.  It's currently not possible to add VAT to Retainer Invoices and it was mutually agreed that there is absolutely no reason why there shouldn't be, especially as TAX LAW makes VAT mandatory on each invoice in Europe!   So basically, what i'm saying is that if you don't allow us to add VAT to Retainer Invoices, than the whole Retainer Invoices becomes
    • Time Log Reminder

      Tracking the time spent on tasks and issues is one of the most important functions of a timesheet. However, users may forget to update the time logs because they have their own goals to achieve. But, time logs must be updated at regular intervals to keep
    • [Early-access] Introducing Zoho's CommandCenter - Cross-Zoho business process automation

        Resources to help Webinar recording | Documentation  Feature Restrictions Currently available on early-access only for US data center accounts Features Role CommandCenter as a Service uses signals across Zoho services to propel the movement of records
    • Tip #58- Accessibility Controls in Zoho Assist: Learning- 'Insider Insights'

      Learning should be clear and interruption-free for everyone. Timely feedback plays an important role in helping users understand actions as they happen, without breaking their focus. In this post, we’ll explore the final section of Accessibility: Learning.
    • ZIA "Generate Content" action doesn't have contexual data from the ticket

      "Generate Content" action doesn't have contexual data from the ticket. I try to get AI to help me with this ticket but it doesn't seem to have any ticket information as context. Although the ticket has a lot of information in it.
    • Zoho Desk - Zoho FSM Integration issue on Mobile and iPad

      Hello Team, I am trying to create a Work Order (WO) using the Zoho FSM integration (Add-on Service) that is integrated with Zoho Desk. The issue is that the integration is not working on mobile devices and iPads. While I am able to create the WO, Request,
    • E-File Form 1099 Directly With the IRS From Zoho Books

      The Form 1099 filing season has begun, and businesses are required to e-file certain forms with the IRS to report payments made to vendors and contractors. If your business made qualifying payments during the year, you must e-file the appropriate Form
    • Suggestions for showing subscribed Topics in CRM (contact record)

      We have several Topics set up in ZMA. We also have a sync set up between ZMA and CRM. I'd like to display the subscribed topics on the CRM Contact record. This will allow the Sales team (who uses CRM) to see at a glance what topics a Contact is subscribed
    • Replies sometimes creating separate ticket

      Sometimes when a customer responds to an email coming from Zoho Desk, instead of adding a reply to the original ticket, a separate ticket is created. This happens even though the response subject line contained the ticket number, and the person responding
    • Re-hide fields when option is unselected

      Hi all Can anyone help me with this - when I create a 'show' field rule for when a dropdown option is selected, how to I make it so the 'show' option re-hides if that option is no longer selected?
    • Custom Fields

      There is no way to add a custom field in the "Timesheet" module. Honestly, the ability to add a custom field should be available in every module.
    • Consultant-Only Booking Page

      Zoho Bookings does not allow for Meeting Type OR Workspace-Wide booking pages to be turned off. This is detrimental to organizations that have territory-based or assigned accounts, because if prospects can go to these booking pages and either select the
    • Call result pop up on call when call ends

      I’d like to be able to create a pop up that appears after a call has finished that allows me to select the Call Result. I'm using RingCentral. I have seen from a previous, now locked, thread on Zoho Cares that this capability has been implemented, but
    • Custom Sorting based on other columns in table

      I need the ability to apply custom sorting to a text-based dimension in the X axis where the sorting is based on another column in the table. For example, I have a chart report where the X axis is a text label. I would like to be able to sort those text
    • Feature Request: Enable Custom PDF Layout Editor for All Modules (Including Package Slips)

      Hello Zoho Community and Product Team, I am writing to share a suggestion that would significantly enhance the customization capabilities within Zoho Books. We all appreciate the power of the Custom PDF Layouts (the "New" template engine) that allows
    • Is there a way to invoke deluge function from within a widget?

      Hi! I have custom functions in deluge and I was wondering whether there is any way to call this function through a widget? Something like on click of a button inside a widget, run the deluge custom function. Would this be possible?
    • Can a default task Priority be set?

      The "Priority" field in the Task layout does not allow a default to be set. Is there another way of doing it? Because the current default is "None" and the Zoho Kanban board design has selected this field as critical information to surface by including
    • Adding a threshold to a line chart based on date range

      I have a line chart that is tracking a percentage over time. It also has a filter for 50 different clients. I would like to create a threshold that is based on a portion of the date range. As I understand it, this would be done by adding a column to the
    • Resize Signature field dynamically

      On the tablet, it is perfect. But on smaller mobile devices and PCs, both web and application, it is too small for people to sign. Is there any plan to make the signature field size dynamically in the future update?
    • Super Admin Logging in as another User

      How can a Super Admin login as another user. For example, I have a sales rep that is having issues with their Accounts and I want to view their Zoho Account with out having to do a GTM and sharing screens. Moderation Update (8th Aug 2025): We are working
    • Zoho Creator Application - New User Not able to access the application

      In Zoho Creator, The newly added user not able to access the " Added Application" - User has received the Invitation Email, but while clicking "confirm Account" in the invitation Email, the following error message has appeared. "Sorry! you cannot accept
    • Deleting Salutation Field

      We have updated our lead input screen and 'Salutation' has appeared. This is not visible in the 'Edit Pgae Layout' screen so cannot be moved to 'List of Removed Fields'  Salutation is visible in the list in 'Customization - Fields' however I can only 'Edit' or 'Replace' I cannot delete and I do not need this field on my lead input screen.  Please can you advise how to get rid of this.  Screen shots can be provided if needed.  Thank you Tasha
    • Auto-Generate & Update Asset Serial Numbers using a custom function (Assets Module)

      Hello Team, I’ve been working on a script to automate one of our processes in Zoho FSM, and the core functionality has been successfully implemented. However, I’m encountering an issue related to serial number allocation, which is not working as expected.
    • Zoho Mail iOS app update: Access Delegated Mailbox.

      Hello everyone! You can now access the delegated mailbox from within the iOS version of the Zoho Mail app. To access the delegated mailbox: Open the Zoho Mail app. Go on to the 'Email' module. Tap the profile picture. Choose the delegated mailbox Please
    • How to convert Lead's country field from Text to Pick List

      Hi, I would like to change the default country field in ZCRM from text to pick list. It looks like not I can't delete default country field and recreate it as pick list nor can i create an new custom field country because such a label belong to default field. So what do I have to do? Any ideas? L
    • How create a draft via workflow?

      I wish to create a workflow rule for specific emails that creates a draft response - not an automatic email reply, but just a draft with a set response ready to be verified by an agent who can then manually select recipients. Alternatively, the workflow
    • Function #51: Transaction Level Profitability for Quotes

      Hello everyone, and welcome back to our series! In a previous post, we shared a custom function that could determine the profitability of a Sales Order. Today, we are presenting a similar function that calculates the profitability of a Quote. The setup
    • New feature: Invite additional guests for your bookings

      Hello everyone, Greetings from Zoho Bookings! We are happy to announce the much-awaited feature Guest Invite, which enhances your booking experience like never before. This feature allows additional participants to be invited for the bookings to make
    • 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
    • الخصم على مستوى فاتورة المبيعات

      السلام عليكم ورحمة الله وبركاته مطلوب في إنشاء خصم على مستوى فاتورة المبيعات وليس على مستوى البند أريد معرفة الطريقة؟
    • VAT and Taxes option not available

      Dear ZOHO Team , The VAT and Taxes options in my ZOHO books account not available,I tried to find how to enable or check the way to use this option but unfortunately couldn't find it anywhere ,I'm in UAE ,kindly let me know what to do to solve this issue
    • Default Tagging on API-generated Transactions

      If one assigns tags to an Item or Customer, those tags get auto-populated in each line item of an Invoice or Sales Order when one creates those documents. However, if one creates the Sales Order or Invoice via the API (either directly coding or using
    • Direct Feed (Bank)

      Is Direct feed integration for AlRajhi and ADCB bank supported by Zoho Books in GCC/Saudi
    • Sales Order, Invoice and Payment numbers

      Hi zoho friends, it is me again, the slow learner. I'm wondering if there is a way to have it so the Sales order, invoice and payment numbers are all the same? It would be easier for me if they were the same number so there is not so many reference numbers
    • Next Page