Title: Creating custom connections for extensions | Community | Zoho Finance

Title: Creating custom connections for extensions | Community | Zoho Finance

In our previous post, we discussed the significance of connections, identified their types, developed a predefined connection, and demonstrated how it can be integrated with Zoho Books using an example. In this post, we'll walk through the process of creating a custom connection using an example.

Custom connections facilitate the integration of applications with Zoho Books by aiding in configuring the required application's connection manually by providing application-specific details. Let's go over the steps involved in configuring custom connections in detail using a use case scenario.

Use case

Let's say an organization uses Zoho Books to manage its financial operations. To improve sales for the organization, one must contact and communicate with multiple clients, as well as check in with vendors on a regular basis to remain up to date on new products on the market, take demos, and assess whether the products need to be brought into the organization.

In these cases, it is best to schedule appointments with clients and vendors in order to conduct business in an organized manner. This can be easily performed by integrating an appointment scheduling software so appointments can be scheduled with a click.

For our demo purpose, let's consider Zoho Bookings as the appointment scheduling software. Since it is not available under the default list of services in predefined connections, let's create a custom connection to achieve this.

Steps to create a custom 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.
   
  • Click New Connection to create a new connection.
NotesNote: Alternatively, you can use the View All option under a connection type to see all the services under that particular connection type and begin creating connections.
     
  • Choose Custom Services and click Create Service.
   
  • Provide the details of the service.
➤ Enter a name for the service, and the service link name will be immediately filled in.
➤ Choose the authentication type that corresponds to the authentication mechanism supported by the service for which you are building the connection. These details will be available as part of the service's API documentation. For our example, we'll use OAuth2, because Zoho Bookings supports it as an authentication mechanism.         
  
➤ The remaining fields to be configured for the service differ based on the authentication type used. In our case, the parameter type is Header, and the grant type is Authorization Code.
   
➤ Please refer to the table below for the values that need to be configured in the remaining fields.
Note: Register the service in the Zoho Developer API console to get the client credentials.
  • Finally, click the Create Service button.
  
  • The service is created successfully. Click Create Connection to create a connection for this service.
  • Provide the connection details, select the scope, and 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.

Additionally, a predefined connection for Zoho Books is created to perform operations on Zoho Books data to implement our use case. Get more information on predefined connections in our previous post.

Now, in accordance with our use case, let's create a custom button that includes this connection to schedule appointments (in Zoho Bookings) with clients and vendors using Zoho Bookings with a single click (from Zoho Books).
We require two custom fields for our logic, one for setting the meeting start time with the client or vendor, and the other to display the Bookings appointment calendar link once the meeting is scheduled.
  • Create custom fields for the Customers and Vendors module by selecting Preferences > Customers and Vendors > Field Customization > New Custom Field.
 
  • Next, create a custom button and include the logic to schedule an appointment.
  • Create a custom button for the Customers and Vendors module by selecting Preferences > Customers and Vendors > Custom Buttons > New.
InfoBook meeting custom button function Deluge code - Please find code snippet as an attachment in the post
  • In the above code, the Get Contacts API of Zoho Books is invoked through the InvokeURL method using the predefined connection to get the contact/customer details for whom the appointment has to be scheduled in Zoho Bookings. Refer to this post to get complete details on the parameters required to call the InvokeURL method.
  • From the API response, the required details are fetched from which the start time (custom field data) is formatted to the way required by the Zoho Bookings API.
  • Next, the Zoho Bookings API to get the service ID and staff ID are invoked consecutively through the InvokeURL method using the custom connection created.
  • The Book appointment API is used to schedule the appointment using the service ID, the staff ID obtained from the Zoho Bookings API, and customer details obtained previously via the Zoho Books API.
  • Finally, using the update contact Zoho Books API, the Zoho Bookings calendar URL is updated in the custom field created to display the calendar booking URL.
We've now completed the extension setup for our use case.

After testing and publishing the extension, as per our use case, you can book a meeting for a Zoho Books customer through Zoho Bookings and have your Zoho Bookings calendar reflected inside Zoho Books as well.

z
This is an example demonstration of the benefits of using a custom connection in a Zoho Books extension. This is a versatile use case that may even be used to schedule an internal meeting with your Zoho Books teammates who are working on a project. Similarly, this use case can be enhanced and implemented based on your needs.

We hope you found this information useful. Keep following us for more tips.

SEE ALSO

    • Recent Topics

    • Product management across integrated apps

      Hi everyone, I’m setting up my business for selling products and integrating CRM, Inventory/Books, Ecommerce, and other apps. Where should I load products for the first time so they reflect across all apps? And for updating prices or adding new products—where

    • 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

    • Improved RingCentral Integration

      We’d like to request an enhancement to the current RingCentral integration with Zoho. RingCentral now automatically generates call transcripts and AI-based call summaries (AI Notes) for each call, which are extremely helpful for support and sales teams.

    • 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

    • Next Page