In our last post, we looked at an overview of the key features available for creating a Zoho Books extension, including connections. In this post, we'll go over connections in depth, including their types and applications.
What are connections?
"Connections" is a component in the developer console that allows you to establish secure connections between applications. In general, a secure connection is essential for apps to work seamlessly for data transmission and synchronization. The connections functionality in the Zoho Books extension developer portal is ideal for securely connecting Zoho Books to other Zoho products or third-party applications.
Types of connections
The Zoho Books extension developer portal allows you to use both predefined and custom connections.
Predefined connections:
These are ready-to-use connections that are preconfigured for various applications to connect with Zoho Books. You can simply search for the application you want to connect to from the default list, choose it, enter some basic information (scope), and connect to Zoho Books.
Custom connections:
These are connections for apps not included in the default list. You can create a custom connection by manually setting up or configuring information about the application you want to connect to Zoho Books with—such as the authentication type and other corresponding details—and then proceeding with the connection.

Note: You can also create these custom connections for applications in the default list if you want to customize the connection with specific details.
Now, let's explore the steps to create these connections with an example for each.
Steps to create a predefined connection
- Go to Sigma and access your workspace.
- Enter the developer portal of the Zoho Books extension you're creating a connection for.
- Navigate to the Build section and click Connections to view the connection details, types (predefined and custom), and support to create a new connection.
- Click the New Connection button to create a new connection.

Note: Alternatively, you can use the View All option under a connection type to see all the services under that particular connection type and begin building connections.
- You'll be redirected to the connections page of your extension's developer space, where you can select default or custom services to create connections.
In this post, we'll walk you through creating a predefined connection using the default services available.
For our example, let's create a connection for Wrike (a project management service) available in the default services list and integrate it with Zoho Books.
- Choose Wrike from the default services list.
- Click the Create Connection button.
- Provide the connection details.
➤ Enter the connection name.
➤ Toggle and choose whether you want every user to enter their credentials during connection authorization.
➤ Choose the scopes necessary for your purposes for the connection.
- Click Create And Connect. Proceed with the flow to accept the scopes and authorize the connection.
- The connection is now authorized, and you'll be directed to the connection details page. This page will also contain sample code in both deluge and JSON formats that can be used to utilize this connection as part of your extension components. Depending on which component you want to invoke the connection in, you can use the appropriate sample code format.

Note: Giving the connection name in the script is critical to be able to use the connection in the extension.
- Close the connection's detail page, and you'll be taken back to your extension's developer portal.
- If needed, you can create multiple connections for your extension. The connections you've created will be visible in the My Connections section of the Connections page.
- You can click on a connection to view its details or choose to revoke it, if necessary. You can reconnect a revoked connection whenever you need it.
Let's look at a simple scenario for the predefined connection we created. Assume that each time a project is created in Zoho Books, a new project is created in Wrike to handle project management in detail. In addition, if any tasks are available as part of that Zoho Books project, they'll be instantly created in Wrike alongside the project. This can be accomplished easily in an extension using workflows, custom functions, and connections.
Let's check out the steps to make this happen.
- Create a custom function for the Projects module by selecting Automate, then Workflow Actions, then Custom Functions, then New Custom Function. Include the logic to fetch the details and its tasks from a Zoho Books project and create a matching project in Wrike.
createwrikeproject deluge function - Please find the code snippet as an attachment in the post
- In the code above, the Zoho Books project's details, such as project name and task details, are fetched from the Project Map parameter in the custom function.
- The retrieved project details are constructed as a Map and then passed to the invokeURL deluge task to invoke the Wrike API and create a project. Additionally, a check is made to see if the Zoho Books project has tasks associated with it. If it does, then those tasks are added to the project created in Wrike using the Wrike API to create tasks.
- The Invoke URL task requires some basic parameters to invoke the API and provide a response.
➤ url: This is the URL of the application's API that will be invoked. In our case, it's the Wrike API URL for Create Project and Create Task.
➤ type: This is the method of the HTTP request required for the API. Since we're creating projects and tasks in Wrike, the type is POST in our example.
➤ parameters: These are data that need to be constructed and passed as the body for the API.
➤ connection: The name of the Wrike connection we created has to be supplied as the value for the connection parameter. This ensures that data transfer between Zoho Books and Wrike is authorized and secure.
- Next, create a workflow rule for the Projects module by selecting Automate, then Workflow Rules, then New Workflow Rule.
- Set the Action Type as "When project is created."
- Now, associate the custom function (createwrikeproject) as a workflow action to this workflow rule. Save the workflow rule.
We've now completed our extension setup for our use case.
After testing and publishing our extension, whenever a new project is created in Zoho Books, a matching project is created in Wrike as well, along with any tasks.
This example demonstrated a seamless transfer of data from Zoho Books to Wrike with connections. This use case can be taken a step further, making sure the project and its tasks maintained in Wrike are also synchronized in Zoho Books.
In this post, we've seen how to set up a predefined connection and use it in a Zoho Books extension. In the next post, we'll look at custom connections and how to create them.
SEE ALSO
Recent Topics
Calculate Number of Days Between Two Dates
Can someone help me with how to create a field using the formula function to calculate the number of dates between a campaign start date and end date? The closest I have gotten is using the "Datecomp" function but it gives you the dates in minutes, rather
Zoho Writer Docx files not able to be converted into Google Docs
Since July 23rd, I've encountered an issue where DOCX files exported from Zoho Writer no longer convert properly into Google Docs when uploaded to Google Drive. My workflow relies on generating merged DOCX documents from Zoho Forms using Zoho Writer templates,
Schedule Campaign - Recipients Time Zone
Something seems to be wrong with the scheduling feature for scheduling campaigns to be deployed at a specific time to the recipients time zone. I scheduled campaigns twice to be sent at the recipients time zone and the campaigns are deploying at the wrong time. When communicating with Zoho support they said to make sure it was scheduled at least 24 hours in advance so we did this with our last campaign and it was still deployed at the wrong time. Anyone else having this issue?
Zoho Vault App for Windows
Hello, is there a Windows app that can be used to access the passwords saved in Zoho Vault? Thank you
Zoho Cursor Jumping
Hi, Zoho Support, We received the below email for a bug when using Zoho on Firefox. Please let us know if there is anything that can be done to solve this issue. Have any other Zoho Mail users reported issues the past few days with Zoho auto-saving drafts
tomorrow option within the due date section and drag and drop into calendar
Firstly, thank you for creating such a well-designed and user-friendly to-do list app. It’s almost perfect for my needs, but I wanted to offer a couple of suggestions that I believe could significantly enhance its usability, particularly for those who
low quality videos
when in puplish videos or reel in social media platforms it pulished in low quality
Using Zoho Forms vs Zoho Survey
Hello - I'm looking for advice on whether to use Zoho Survey or Zoho Forms for our small non-profit. We have a Zoho One subscription, so have access to both. The main use case at the moment is application forms for our professional development programs.
Kaizen #200 - Answering Your Questions | Authentication using Zoho CRM Python SDK
We’re incredibly excited to bring you the 200th post in our Kaizen series! This journey has been as much about listening as it has been about sharing. And today, we’re making both count. Over the past few weeks, we’ve collected your feedback through the
Zoho CRM sync
Just wondering if the plan is for the Zoho CRM implementation to always be just an import and not a sync? At the very least, a one-way sync that kept the data in Tables up-to-date would increase the amount of usecases, but ideally the option to two-way
Add serial number in print page list
How can i add serial number in print page for every entries?
Trying to Delete records from Creator not found in CRM
Hi, In the following script, I am trying to delete records from Creator not found in CRM, but I am getting the error message "Error at line number: 55 Improper Statement Error might be due to missing ';' at end of the line or incomplete expression". Please
Can't login to Zoho mail
I'm logged into Zoho but when I try to go in zoho mail I get: Invalid request! The input passed is invalid or the URL is invoked without valid parameters. Please check your input and try again. I just set up my mx records and stuff with namecheap a few
REST API for Branch and Budget
Hi Team, Can you please guide me with the appropriate rest API documentation for fetching Branch and Budget details?
STOP FRAUDULENT TRANSACTION IMMEDIATELY
I DID NOT AUTHORIZE THIS TRANSACTION OR RENEWAL, STOP IMMEDIATELY CHARGING MY CARD I CAN NOT CONTACT SUPPORT, NO ONE IS AVAILABLE ON CHAT PAYMENT ID RPCW2003260759193
Best way to handle a credit card download fiasco
Hi there, hoping that someone knowledgable with book keeping can give me the answer here. One of my credit cards has been integrated with Zoho books and we have been downloading transactions with no issue. The credit card got compromised and was used
When Opening Zoho Mail I always get a Tab with an error (See attached image)
Everytime I open Zoho mail I get this. It is trying to open a deleted email. I already tried going to Settings > While Starting up Changed that option back and forth but this persists. Its annoying. Other than that I love this. Any help would be appreciated.
Pre-Registration - Suggestion
Suggest to add a Pre-Registration feature for non-scheduled events. Scenario is that we have a training academy and would like to collect pre-registrants prior to an actual scheduled event so we can use this as a basis for demand management and scheduling of new events for those expressing interest.
Not all messages showing in folders in iOS mail.app
I have a bunch of emails filed in various folders. Those folders are showing all of the emails in them on Zoho.com and in the Zoho Mail app on my iPhone and my iPad. They also all show up fine in Mail.app on my Mac. The problem is that certain (not all)
Where do the 'Archived' mails go?
I have hit 'Archive' on quite some mails I still needed, but didn't want in my inbox anymore. I obviously thought 'Archive' is not the same as 'Delete', since they don't even pass the trash folder this way, and right now I was looking for one of those
Signature image size changing on replied emails
Hi, Sometimes I see the size of the image I use as signature changes when I open replied emails. Do you know why is this happening? It doesn't seem to happen when I send emails to Gmail though. Signature should look like in attachment "Signature_normal.jpg"
Não consigo enviar emails. "Razão:533"
Não consigo enviar emails. "Razão: 533 Relaying disallowed. Invalid Domain" aparece e me impede de enviar emails... Como resolver o problema?
Error when setting up IMAP access in Gmail
Hi I set up POP3 access via Gmail for my Zoho-hosted domain email. I just tried to change it to IMAP access, however when inputting the settings I received the following error message from Gmail "Missing +OK response upon connecting to the server: * OK
Zoholics Europe 2025: Unlocking the Power of Zoho CRM : A Hands-On Workshop
Why should you attend? At Zoholics Europe 2025, Zoho’s official user conference, you’ll have the opportunity to connect directly with experts and explore powerful tools that help businesses elevate customer experiences. Be sure to attend one of the most
"Wrong password or login" Problem to configure Zoho on MAIL App on my Macbook
Hi, I'm having problems to configure my e-mail on my MAIL App(Macbook pro). My e-mail is hari@trespontoum.net Actually was working perfectly, and still working on my Iphone. My MAIL App prompt me that my login or password is wrong. I tried to change 3
How do I delte a mailbox alias
Hi everyome, I have created a mailbox alias on one of my accounts, but I can't figure out how to delete it again. When I go into the control panel on my super-admin account and click on user details and the settings for the user, I can see the mailbox
Allowing vendors to Upload Purchase Invoices against Purchase Order
Work Flow: Once Project is executed, We send Purchase order to every Vendors asking them to Share the invoice against the same. Most of the time Vendors Send invoices through Mails but our Finance Team miss to book those Purchase Invoices in Zoho Books.
Deluge - forward incoming email with original attachments and content but new subject
I'm working in ZohoMail with a 10GB paid account. Using a filter and a custom function, I can send a new mail with the original email content and a new subject, but I'm struggling to find how to attach the original attachment to a new mail - or even to
Error: "The conversation window has expired." on WhatsApp
Hello, I would like to know why this error appears in the messages within WhatsApp from the CRM: "The conversation window has expired." The question arises because a potential client sent us a message at 11:00 PM and we are responding the next day at
How to Sync Desk KB and Sales IQ KB?
Hi, we have just started to use Desk and are using the SalesIQ Chat. Ideally I'd like to use the 'FAQ' feature on chat (which uses SalesIQ KB) and also allow our customers to use the self-service KB that comes with Desk. Unfortunately they are two different
Need help! Unable to send message; Reason: 554 5.1.8 Email Outgoing Blocked.
Hi Zoho team My account name is senpai.atelier, it’s been few days I can’t send Emails with the same error messages. I’ve raised the issue to support@zohomail.com that doesn’t respond to my query. I wonder if you may help troubleshooting soon.
Zoho arrives to Spam on all Microsoft Accounts (Outlook, Hotmail, Microsoft 365)
I believe this is a very serious issue. All my email accounts in Zoho arrives straight to SPAM. Thing is, a lot of clients rely on email arriving to Inbox, specially on Microsoft Accounts since it is used a lot both for business and personal email sending.
Registeration
I just added the TXT code. What next?
Cannot receive password protected zip files
Hello, I cannot received a password protected attachments. Also all my members in the same domain has the same problems. Can you please help me? Best regrads
ERROR 554 5.1.8 Sender Address Blocked code(554)
We have an email with Zoho ( comercial@bruiser.com.br), but, when we try associate the account in GMAIL, the server shows this message: 554 5.1.8 Sender Address Blocked code(554) I see this error appear when the limits of returns exceded 10 messages,
How do I associate pricebooks to a customer?
I setup a few pricebooks, that worked fine. But now the only thing I can do with it, when I enter a quote or sales order, I can select which pricebook to use, but I have to do this product by product every time I add one. Is there a way to connect a pricebook
Zoho mail stopped receiving emails
Our email are stopped to receive outsider email. i have checked the DSN, it's pointed to ZOho mail. Can anyone help me to fix this issue urgently? Thanks
send email from web application
Hello, I'm experiencing an issue with sending emails from my web application. Here are the configuration parameters currently in use: ini Copia Modifica quarkus.mailer.from=noreply.sedis@mondonovo.net
quarkus.mailer.host=smtp.zoho.com
quarkus.mailer.port=465
Custom CSS in Zoho Form
Hi, Please let me know, how we can add custom css in Zoho Form. Thanks
Zoho Recruit
Getting this issue
Next Page