Episode I : Exploring the World of Custom Functions in Zoho Desk

Hello Again!
Welcome to an Automation Adventure in the World of Zoho Desk
Join us on a journey to explore how custom functions can enhance and extend the capabilities of Zoho Desk.

Automation is everywhere. From robotic arms assembling products on factory floors to automating tasks in the software world, automation has revolutionized how we work out stuff. But what does this have to do with Zoho Desk? 

Anline, a curious resident in the Zoho Desk world, is exploring how automation can transform her workflow.

Anline’s Quest in the Zoho Desk World  

Anline is building her own world within Zoho Desk, but she’s hit a few roadblocks. She wants to perform specific operations; like updating ticket statuses, fetching data from external services, and automate repetitive tasks. She knows Zoho Desk has the tools she needs, but where does she start?

DeskAutomate Services is here as a guide to the Automation City. The citizens of Zoho Desk World operate based on their licenses. Each license unlocks different levels of automation capabilities.

Anline has the Enterprise edition, which grants her the access to the most powerful tools: Custom Functions. How can this empower Anline?

The Power of Custom Functions  

Custom Functions are like magic spells in the Zoho Desk world. They give users flexibility to tailor automation to their exact needs. While basic automation features are available to all license holders, Custom Functions are exclusive to Enterprise users. These functions let Anline go beyond the basics and create automations that meet her unique requirements. What makes them even more accessible is Deluge, Zoho’s in-house scripting language.

But there’s a catch: Anline isn’t a coding expert in Deluge. How can she harness the power of Custom Functions without getting lost in complex scripts? DeskAutomate guides Anline to the prebuilt functions and a user-friendly framework, simplifying the coding process.

Whether you’re new to coding or an experienced developer, Deluge simplifies the process of creating Custom Functions with its intuitive interface and drag-and-drop functionality.

The Deluge Script Editor: Your Coding Playground  

To access the Custom Function window, go to Setup (S) >> Developer Space >> Functions >> New Function.

When you open the Custom Function window in Zoho Desk, you’ll find a user-friendly interface designed to help you build scripts using drag-and-drop options. Here’s what you’ll discover: Each section has predefined variables which you can drag and use based on your requirements.

1. Basic Commands
The Basic section includes essential commands like setting variables, adding comments, and inserting informational text into your script. These foundational elements help you structure your Custom Function logically.

          Example: businessDaysCount = 5; //<variable> = <expression>;

2. Conditional Logic
The Condition section allows you to add conditional operators such as if, else if, and else. These operators let you program decision-making logic into your Custom Function.
Example:

1. if (TicketStatus == "Open")
2. {
3.     info "This ticket is still open.";
4. }

3. Notifications
The notifications section lets you enter values to send emails or post messages via Cliq.
Example:

1. sendmail
2. [
3. from : zoho.userid
4. to   : support@zylker.com
5. subject : "Ticket is created"
6. message : "Thank you for your enquiry. A ticket has been created and our experts will respond to you."
7. ]; 

4. Integrations
Zoho Desk makes coding easy for integrations. With drag-and-drop options, you can create webhook integrations and API calls without writing complex code from scratch. The Custom Function window provides all the necessary code snippets, so you can customize them to fit your requirements.

Example: contactRecord = zoho.crm.getRecordbyId("Contacts",9876787);

5. Collections
The Collections feature lets you gather and manage strings of data or specific information within your Custom Function. This is particularly useful when you need to process or analyze multiple data points.
Example:

1. myList = Collect();
2. myList.insert("ID1");
3. myList.insert("ID2");
4. myList.insert("ID3");
5. for each ID in myList
6. {
7.    info ID;
8. }

You can also enable the Syntax Builder within your Coding playground. Enabling this option will help you choose variables from the drop-down windows having prebuilt variables/Fields.

Mapping Parameters and Testing Your Script  

Once you’ve built your Custom Function, the next step is to map it to your Zoho Desk environment:

1. Edit Arguments
The Edit Arguments option lets you map params within your Custom Function to fields in your tickets. For example, you can link the Ticket ID, Ticket Owner, or Case ID to the corresponding fields in your Zoho Desk setup. This ensures that your Custom Function interacts seamlessly with your data.

2. Authentication and Connections
Zoho Desk uses OAuth tokens to establish secure connections for Custom Functions. Commonly, this involves using Zoho OAuth to make API calls within Zoho's scope. You can choose the appropriate scopes during authorization to ensure your Custom Function has access to the necessary data and functionalities.
Note: If you choose third-party applications, please create a connection using the required default or custom services.

3. Save and Test

After saving your script, use Save & Execute Script to test it with sample inputs. This lets you test the function, ensuring functionality, debug, and refine your code before deployment.
In the upcoming episodes, we'll dive into how Custom Functions work and contribute to expanding the capabilities within Zoho Desk.
See you in the next episode,
Regards,
Lydia | Zoho Desk. 

• Topic Participants

• Lydia | Zoho Desk

  

• Sticky Posts

• Register for Zoho Desk Beta Community

  With the start of the year, we have decided to take a small step in making the life of our customers a little easier. We now have easy access to all our upcoming features and a faster way to request for beta access. We open betas for some of our features

• Share your Zoho Desk story with us!

  Tell us how you use Zoho Desk for your business and inspire others with your story. Be it a simple workflow rule that helps you navigate complex processes or a macro that saves your team a lot of time; share it here and help the community learn and grow with shared knowledge. 

• Tip #1: Learn to pick the right channels

  Mail, live chat, telephony, social media, web forms—there are so many support channels out there. Trying to pick the right channels to offer your customers can get pretty confusing. Emails are most useful when the customer wants to put things on record. However, escalated or complicated issues should not be resolved over email because it's slow and impersonal.  When you need immediate responses, live chat is more suitable. It's also quick and convenient, so it's the go-to channel for small issues. 

• Welcome to Zoho Desk Community - Say hello here!

  Hello everyone! Though we have been here for a while, it’s time to formally establish the Zoho Desk Community; we’re really happy to have you all here! This can be the place where you take a moment to introduce yourself to the rest of the community. We’d love to hear all about you, what you do, what company or industry you work for, how you use Zoho Desk and anything else that you will like to share! Here’s a little about me. I am Chinmayee. I have been associated with Zoho since 2014. I joined here

• Webinar 1: Blueprint for Customer Service

  With the launch of a host of new features in Zoho Desk, we thought it’ll be great to have a few webinars to help our customers make the most of them. We’re starting off with our most talked about feature, Blueprint in Zoho Desk. You can register for the Blueprint webinar here: The webinar will be delivered by our in-house product experts. This is a good opportunity to ask questions to our experts and understand how Blueprint can help you automate your service processes. We look forward to seeing

• Recent Topics

• Report grouping

  I have added a grouping in a report but it is not working how i had expected. I wanted to group a summary on a field named Size but when i add the grouping the report is still showing me each record and making a summary at the bottom of the report. What

• Social Media Simplified with Zoho Social: Preview your Instagram grid before posting

  For a platform like Instagram that relies on visual appeal, it's important that you plan your image and video content in a way that holds your audience's attention. Planning your grid ahead of time gives you the benefit of understanding how your posts

• Error code 1000

  Can you please tell me why the following, occasionally causes this error via the api, not every time ?... zoho.books.updateRecord("salesorders",organizationID,salesorderID,{"template_id":"#################069","custom_fields":[{"label":"DelDate","value":"Tuesday,

• VAT rates - exempt and out of scope

  Good Evening, UK based company here. I am a bit confused in respect of setting up VAT rates for exempt goods and services; at present I am simply leaving the VAT rate blank in the transactions in order to prevent any VAT appearing in the VAT return. When

• How to loop through Multiple Upload and Display Actual File Name

  I have been reading the help on the File Upload Control and reviewed the Deluge help on files and I can not figure out how to loop through the uploaded files and do anything but get the automatically created file names. The code below will run but each

• abou arattai

  I want to use the Arattai app for business purposes, so please convert my account to a business account.I have my own invoice app, and I want to link it with the Arattai app for direct messaging.

• Configurable Zoho Cliq Notifications for Zoho People Alerts

  Hello Zoho People Product Team, Greetings and hope you are doing well. We would like to request an enhancement to Zoho People notifications, enabling a native delivery via Zoho Cliq with admin-level control, similar to the notification settings available

• Looking back at Zoho Calendar in 2025

  Hello Zoho Calendar Community, As we step into a brand-new year, we’d like to take a moment to thank you for being an active and valued part of the Zoho Calendar community. Your trust, feedback, and continued engagement motivate us to keep evolving and

• There was an error while connecting to GSTN

  I am trying to file GSTR1. Everything flows smoothly until I reach the final step of filing the return. After I enter the PAN and OTP for filing it raises the error "There was an error while connecting to GSTN"

• Zoho Books Extension: What Happens If Custom Fields Already Exist?

  When developing Zoho Books extensions, what happens if the target Zoho Books organization already has a custom field with the same API name as one defined in the extension? I’m asking because we originally created an on-Books version of this functionality,

• Internal Server Error (500) When Attempting to View Banking Transactions

  I am experiencing an Internal Server Error (500) when attempting to view transactions across all of my banking accounts. Despite multiple attempts to resolve this, I have received little more than runaround from support, and the issue remains unresolved.

• How do I add a blank line to the Organisation Address Format?

  I'd like to have my VAT number, for example, shown prominently by having a clear gap between it and the address block above, but any blank lines in the address format get ignored in PDF outputs.

• Automatic Invoice Number generation for createRecord

  Hello, while testing some custom Buttons in my Zoho Books application, I noticed that I get an error that previously did not occur. After some further digging I found that the automatic transaction numbering of invoices no longer work in my organization.

• Adding number of days to an estimate.

  I need both QTY of item and "number of days hire" in my estimates at the line item level. Any clues as to how this is done would be greatly appreciated. It needs to calculate. Thanks J

• Books Api: listing expenses created after certain dates

  Is there any parameter I can add to the List Expenses endpoint that will let me look up expenses by when they were created?

• Why can't we change the Account type from an Expense to an Asset?

  Like the question. Why in QuickBooks for example if I mistakenly created an account as an expenses and I already captured information in those accounts, I can just change the account type from expense to asset

• Is it possible to do validation for the Actions added to Reports?

  We have an all-around On Validate function that checks all the possibilities before the Created/Edited form submissions. We want to have a button in the report view, so we can change records without entering. We are able to add this button, and it does

• [Free Webinar] Environments in Zoho Creator - Creator Tech Connect

  Hello Everyone, We’re delighted to kick off the 2026 edition of the Zoho Creator Tech Connect Series and are excited to continue this learning journey with you. The Creator Tech Connect series is a free monthly webinar featuring deep-dive technical sessions

• Zoho Voice API SMS

  I made a post request in Zapier to try to send an SMS. Authentication appears to be configured correctly. I followed the documentation and I'm getting a 400 Error "Internal Server Error". Not helpful at all. Anyways, I could not find any information on

• How do I change (error) display messages

  Hi! I would like to edit display messages like "invalid entries" and "enter a value for Nome" and so on into Italian language messages. How can I do that? Already tried on Validate on form submit. Where I am failing? Thanks in advance.

• Record Overseas Transactions Along with CC charges

  Hi All, We receive payments via stripe in multiple currencies and stripe takes around 2.5% fees. The amount is settled in INR into our local bank. What should be the currency of the income account used for Stripe payments? Here is a sample flow that we

• Easier onboarding for new users with stage descriptions

  Greetings, I hope all of you are doing well. We're happy to announce a recent enhancement we've made to Bigin. You can now add descriptions to the stages in your pipeline. Previously, when creating a pipeline, you could only add stages. With this update,

• Pieds de page personnalisé - Document Zoho Writer

  Bonjour à tous, Je rencontre un souci avec l’ajout d’un pied de page personnalisé dans un document Zoho Writer. Je souhaite insérer les informations de mon entreprise (notamment un logo + adresse) dans le pied de page. Le problème, c’est que lorsque j’ajoute

• Credit card transactions are backwards after importing statements

  I am new to Zoho Books so I'm importing my firm's bank and credit card statements in. My credit card statements have a single column with negative numbers so that is the option I chose. But when I went to categorize the credit card transactions, I can

• Permissions on Views

  Having the option of any agent creating custom views is firing back and got a situation where there are a hundred different views across the team and tickets are not being dealt in the most efficient of ways. Tickets seems to be missed by some agents,

• Function #8: Add additional charges to invoices

  Here goes one of the highly sought-after custom functions in Zoho Books. If you find yourself needing to apply additional charges to customers on their invoices (say credit card surcharges, or fuel charges applicable to customers from a certain region,

• VIsual maindmaps in Zoho notebook Ai

  Can I create and export VIsual maindmaps in Zoho notebook Ai

• 1stDibs Integration to Zoho Inventory

  Hello is it possible to integrate my Zoho inventory and 1stDibs?

• Community Question: Renewal vs Invoicing

  This is a question for the community. Does anyone else consider there to be a difference between a subscription renewal event and sending out a recurring invoice for a subscription? For example, let's say customer XYZ purchases a 1-year subscription to

• cloud console support for music websites

  Hi Friends, I am not from a very technical background.. So need support from the Zoho family. I want to build a e-commerce website which is in Musical Niche. It will help people learn music & play instruments of all types. There are a few players in the market like Chordify , Guitaa, Guitar Dashboard, ChordU & few others. But I all these websites allow only a few instruments  to play. So I want to build a better  website than the one I mentioned. So wnated to know what UI & AI should I use so that

• Scheduled Reports - Do not send empty report

  Hello, We are intensively using reports in the CRM, especially for sales managers. When data is empty, they still receive an email. Can you add an option to avoid sending the report when data is empty?

• Is Zoho One Desktop more secure than Zoho One Web SaaS?

  Is Zoho One Desktop more secure than using Zoho One in browser? Inherently, it seems desktop would be unless you don't do things like share your pw or leave pc on. I am concerned about data being on the cloud or someone else's server and database.

• Reminder Settings - Time Tracker

  On the time tracker in Reminder Settings I created a reminder according to the Zoho manual. But a manager asked me to change the message that goes in the email. Is it possible to change the message? I didn't find that in the Zoho manual. Another question: I configured to receive the reminder everyone who logged in less than 40 hours. Does Zoho consider less than 40 hours of the current week or the whole month? Another situation, I put it so that I and another specific user would receive the notification,

• Create Item group from a composite Item

  I have applied my mind for hours but cannot figure this out. Can you have a composite item in an item group?. E.g. We bundle different color and size SKU's together as composite items. Also Using composite items as Bill of Materials. We want to create

• Main difference of Zoho Recruit Corporte version and Staffing HR vesion

  Hi Zoho, I need help to fully understand what is the main key point differences of Recruit Corporate version versus the Staffing HR version? We are currently using Corporate HR version and we are looking on having an insightful automated reporting, does

• Out of Stock items showing in Commerce

  I have over 6000 items and most are not in stock, but all items are showing up in Commerce whether they are inventory or not. What option or feature can you use to hide items in Commerce at zero or negative quantities? I currently am using Commerce for

• Is it possible to transfer data from one related list to another within the same module ?

  In the Leads module, there is an existing default Product related list that already contains data. Recently, I added a custom multi-lookup field, which created a new related list in the same Leads module. Now, I need to move the existing data from the

• How to implement new online payment gateway?

  Hello, Can you tell me how to proceed to implement my local payment gateway? DIBS has an open avaiable API that should be easy to implement into ZOHO BOOKS. http://tech.dibspayment.com/dibs_payment_window

• Formula working in MS Excel , is not working in Zoho Sheets, Filter fuction which is working in MS sheets per the attached workbook / Daily update.

  Filter function , which is working in MS Excel is not working in Zoho sheets. Please help on function of filter of particular class sheets and extract students name who has more than 3.5 hours of study hours on particular day depending on date in D7 cell.

• New in Smart Prompt: Record Assistant for contextual assistance, and support for new AI models

  Smart Prompt helps teams stay informed and move faster by providing relevant suggestions where work happens in CRM. With this update, Smart Prompt becomes more adaptable to your organization’s AI preferences. You can now choose which Large Language Model

• Next Page