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.
- Navigate to the Connections section in the left panel and click the Get Started button.
- Under the Services section, select Custom Services, then click Create Service.
- Fill in the required details for the custom service in the configuration screen.
- Enter a name for the custom service connection under Service Name; this will automatically generate the service link name.
- 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.
Note:
Refer to the official API documentation of the third-party application to determine the authentication type.
- 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.
- 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.
- 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.
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.
- 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.
- On the following screen, provide a connection name for your Trello integration; this name will automatically generate the Connection Link Name.
- Once you've entered the necessary details, click the Create And Connect button to start the connection process.
- You'll be prompted to authenticate your Trello account using the API key and token you got from the Trello API documentation.
- After entering these credentials, click Connect to authenticate and integrate your Trello account with the custom service you have created.
- 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:
- Retrieve the details of the newly created task from Bigin using its Task ID.
- Extract relevant task data such as the subject (used as the task name) and description.
- Identify the target Trello board and the specific list where the card should be created.
- 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.
- Prepare the card details using the extracted task information and the identified list ID.
- 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.
- // Step 1: Get task details from Bigin
- taskDetails = zoho.bigin.getRecordById("Tasks",task.get("Tasks.ID"),Map(),"biginandtrello__biginconnection");
- // Step 2: Extract task data
- taskData = taskDetails.get("data").get(0);
- taskName = taskData.get("Subject");
- taskDescription = taskData.get("Description");
- // Step 3: Trello board and target list name
- boardId = "KQMtdnPX";
- targetListName = "Today";
- // Step 4: Get all lists on Trello board
- listsResponse = invokeurl
- [
- url :"https://api.trello.com/1/boards/" + boardId + "/lists"
- type :GET
- connection:"biginandtrello__trello"
- ];
- // Step 5: Find the list ID by name
- listId = "";
- for each listItem in listsResponse
- {
- if(listItem.get("name") == targetListName)
- {
- listId = listItem.get("id");
- break;
- }
- }
- // Step 6: Check if list exists
- if(listId == "")
- {
- info "List with name '" + targetListName + "' not found.";
- return;
- }
- // Step 7: Prepare Trello card details
- cardDetails = Map();
- cardDetails.put("name",taskName + " - From Bigin");
- cardDetails.put("desc",taskDescription);
- cardDetails.put("idList",listId);
- // Step 8: Create Trello card
- createCardResponse = invokeurl
- [
- url :"https://api.trello.com/1/cards"
- type :POST
- parameters:cardDetails
- connection:"biginandtrello__trello"
- ];
- // Step 9: Log Trello response
- info "Trello card creation response: " + createCardResponse;
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
Rename system-defined labels in Zoho CRM
Renaming system-defined labels is now available across all DCs. Hello everyone, Zoho CRM includes predefined system fields across modules to support essential CRM operations. Until now, the labels of these fields were fixed and could not be edited from
Introducing parent-child ticketing in Zoho Desk [Early access]
Hello Zoho Desk users! We have introduced the parent-child ticketing system to help customer service teams ensure efficient resolution of issues involving multiple, related tickets. You can now combine repetitive and interconnected tickets into parent-child
Separate Items & Services
Hi, please separate items and services into different categories. Thank you
Concern Regarding Stock Validation in Inventory Management
Hi Zoho Team, We would like to highlight a concern regarding stock validation in the inventory system. As per standard inventory management practices, if the stock level is zero, the system should not allow users to create a shipment, packing slip, or
Log a call: Call Duration for Inbound is mandatory but inbound is optional
Hi Team Can you advise on why the call duration for the inbound call type is a mandatory field? We have a use case where we are manually logging a call but do not use the call duration field. The field does not have the option to make it non mandatory
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
Zoho Sign 2025–2026: What's new and what's next
Hello! Every year at Zoho Sign, we work hard to make document signing and agreement execution easy for all users. This year we sat down with our head of product, Mr. Subramanian Thayumanasamy, to discuss what we delivered in 2025 and our goals for 2026.
New Account, Setting up Domain Question
Hello, I recently set up a new account with a custom domain. But after paying and setting up my account, it says OpenSRS actually owns the domain, and I have to sign up with them to host my site. But OpenSRS wants to charge me $95, which is ridiculous.
【開催報告】東京 Zoho ユーザー交流会 NEXUS vol.1 ~ データドリブン経営・少人数組織のCRM活用・AIエージェントの最前線 ~
ユーザーの皆さん、こんにちは。 コミュニティグループの中野です。 2026年3月27日(金)、東京・新橋にて「東京 Zoho ユーザー交流会 NEXUS vol.1」が開催されました。 今回は「マーケティング領域のZoho 活用法 × AI」をテーマに、ユーザーさん2名による事例セッション、Zoho 社員によるAIセッションなどを実施しました。 ご参加くださったユーザーの皆さま、ありがとうございました! この投稿では、当日のセッションの様子や使用した資料を紹介しています。残念ながら当日お越しいただけなかった方も、ぜひチェックしてみてください。
Monthly Webinar : Getting Started with Zoho LandingPage
Our monthly Getting Started with Zoho LandingPage webinar is back! If you're building your first page and want a little guidance, this is where to start. Learn how landing pages fit into your strategy, generate leads, and improve conversions. Here’s what
All new Address Field in Zoho CRM: maintain structured and accurate address inputs
Availability Update: 29 September 2025: It's currently available for all new sign-ups and for existing Zoho CRM orgs which are in the Professional edition exclusively for IN DC users. 2 March 2026: Available to users in all DCs except US and EU DC. 24
What matters more in Zoho implementations: tools or system architecture?
I recently worked on a full-stack migration for a catering equipment business using Zoho One with Shopify, and it raised a few interesting observations. The setup included migrating a large product catalog (around 9,700+ SKUs), integrating multiple supplier
ZOHO CRM Quote Export / Quote Report
How can I either Export my quote list, or create a Report that shows all quotes AND includes the NOTES field in a column. I attempted to Run a Report which includes ALL FIELDS, however it does not include the Notes Field (but oddly does include the fields
Mass emails - Allow preview of which emails will receive the email based on the criteria
Feature request. Please allow us to view and confirm the exact recipients of the mass emails based on the criteria we've chosen before sending. It can be quite sensitive if you send the mass email to some wrong accounts accidently, so it would be great
Limitation in Dynamic Constant Sum Based on Previous Question Selections in Zoho Survey
Zoho Survey supports the Constant Sum question type, allowing respondents to distribute a fixed total (such as 100) across a set of options. However, it does not support dynamically populating these options based on selections made in a previous question.
SAP Business One(B1) integration is now live in Zoho Flow
We’re excited to share that SAP Business One (B1) is now available in Zoho Flow! This means you can now build workflows that connect SAP B1 with other apps and automate routine processes without relying on custom code. Note: SAP Business One integration
sync two zoho crm
Hello everyone. Is it possible to sync 2 zoho crm? what would be the easiest way? I am thinking of Flow. I have a Custom Module that I would like to share with my client. We both use zoho crm. Regards.
Showing the map along with mileage expense
When you use the GPS to track mileage, it shows you the map of the actual path travelled. It would be very useful and practical to save that map with the mileage expense, so that when the report is created, it provides a map of each mileage expense associated
Import MSG to Yandex Mail Account | Fast & Reliable Solution
If you are facing problem to import MSG files to Yandex Mail account can be challenging if done manually, especially when handling multiple files. A reliable solution is using the MacGater Mac MSG Converter, which simplifies the entire process with accuracy
Copy all reports in a folder
I currently have a database that I need to create multiple charts filtered by market. All of the charts are identical, I just change to of the filters and then I have the next market's set of charts. The only way I've been able to copy charts (reports)
OpenURL working Intermittently
Never had this issue before, everything was working fine up to a few days ago. We have a buttons on reports to open forms with pre-filled fields. Now, there are instances where it will throw and error and gives no feedback. What is really strange is not
Trigger workflows from SLA escalations in Zoho Desk?
Hey everyone, I’m currently working with SLA escalation rules in Zoho Desk and ran into a limitation that I’m hoping someone here has solved more elegantly. As far as I can tell, SLA escalations only support fairly limited actions (like changing the ticket
Zoho Recruit mailserver get blocked by Microsoft!
Hi, We have experienced this issue twice now, where Zoho Recruit outbound IP addresses are being blocked by Microsoft. We are confident that Microsoft is the blocking party, as all outbound emails to candidates with @hotmail.com, @live.com, and @outlook.com
Create formula calculations in Assemblies for scaling quantities
Something we have been encountering with our composite items is dealing with scaling of quantity of one or more items within the composite assembly relative to the number of complete units being sold. I.e. running the equation 2(n-1) on one of the assembly
Calculate Hours Minutes Sec in Zoho Creator Using Deluge
check_In = "8-Aug-2023 10:00:00".toDateTime().toLong(); checkout = "8-Aug-2023 18:00:00".toDateTime().toLong(); //difference = start.timeBetween(end); check_In = "8-Aug-2023 17:56:50".toDateTime().toLong(); checkout = "8-Aug-2023 18:00:00".toDateTime().toLong();
Build Smarter Apps with AI in Zoho Creator
Build Smarter Apps with AI in Zoho Creator This is truly the era of AI, and businesses that adapt now will lead tomorrow. Zoho is already moving ahead in this direction, continuously evolving its platform with powerful AI capabilities. With Zoho Creator,
Zoho Recruit - Email Relay
Good day, Has anyone succeeded in setting up an email relay for Office 365? If I add the details from https://support.microsoft.com/en-us/office/pop-imap-and-smtp-settings-8361e398-8af4-4e97-b147-6c6c4ac95353, I get the connection error. Regards, Eka
Zia Dashboard Insights : turn your dashboard into decisions
When you look at a chart or KPI in a dashboard, you would possibly see something like: Revenue: $2.4M ↓ 18% vs last month. It can be a positive growth or a negative one, or a dip in revenue, a spike in deals, a slowdown in renewals—all you usually see
Tickets without registration
Hi, would it be possible to give customers the opportunity to be able to read their tickets without registration?
Zoho Desk Answer Bot vs. Zia Agents – Knowledge Base & Ticket Access
Hi everyone, I’m currently evaluating AI options in Zoho Desk and ran into some limitations with the Answer Bot: Answer Bot limitations Only uses Knowledge Base articles No access to tickets Limited control over sources: Either one Help Center or all
Como estruturar automações eficientes no Zoho Creator
Como estruturar automações eficientes no Zoho Creator Introdução No contexto de aplicações empresariais, automação não é apenas uma conveniência, é um fator crítico para ganho de produtividade, redução de erros e escalabilidade operacional. O Zoho Creator
Changing the status of a work-order
Is there a way to change the status of a work-order?
What is a realistic turnaround time for account review for ZeptoMail?
On signing up it said 2-3 business days. I am on business-day 6 and have had zero contact of any kind. No follow-up questions, no approval or decline. Attempts to "leave a message" or use the "Contact Us" form have just vanished without a trace. It still
Zia Agents in Zoho CRM: a better way to set up digital employees
Hello everyone, If you've been using Zia Agents in Zoho CRM, so far using Connections was the only deployment method you're familiar with. You create an agent in Zia Agents (define its objective, write instructions, use tools, add knowledge base) and
Bank Feeds
Since Friday my bank feeds wont work. I have refreshed feeds, deactivate and reactivate and nothing is working
Logged out
Hi, just been working on a sheet when a pop up box appeared telling me I'm going to be logged out in x number of seconds and if I reload I may lose any edits, or words to that effect. It did indeed log me out and I did indeed lose my last edits. Any idea
Zoho API
I have little experience with API. I'm trying to get a Custom API working with Zoho creator. I have created a Custom API and created an Endpoint URL, but i get a 9400 error code "The provided HTTP method is not valid for this custom API". Based off the
#157127950
Where did my initial question go?
Zoho writer unable to merge documents to PDF with basic fonts in Hebrew or fonts from my computer
I created several forms that will be merged into PDF files through Zoho Writer and I am unable to receive the PDF in the basic fonts of the Hebrew language or in the fonts I have on my computer. The writer exports to PDF an exchange font that looks very
How I Implemented Subscription-Based Access Control and Expiry Handling in Zoho Creator
I recently worked on a use case where users come into the application to request a service, but they should only be able to continue the process after completing a subscription. The challenge was not just controlling access, but also making sure that
Next Page