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

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. 

    Access your files securely from anywhere








                            Zoho Developer Community




                                                  • Desk Community Learning Series


                                                  • Digest


                                                  • Functions


                                                  • Meetups


                                                  • Kbase


                                                  • Resources


                                                  • Glossary


                                                  • Desk Marketplace


                                                  • MVP Corner


                                                  • Word of the Day


                                                  • Ask the Experts



                                                            • 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


                                                            Manage your brands on social media



                                                                  Zoho TeamInbox Resources



                                                                      Zoho CRM Plus Resources

                                                                        Zoho Books Resources


                                                                          Zoho Subscriptions Resources

                                                                            Zoho Projects Resources


                                                                              Zoho Sprints Resources


                                                                                Qntrl Resources


                                                                                  Zoho Creator Resources



                                                                                      Zoho CRM Resources

                                                                                      • CRM Community Learning Series

                                                                                        CRM Community Learning Series


                                                                                      • Kaizen

                                                                                        Kaizen

                                                                                      • Functions

                                                                                        Functions

                                                                                      • Meetups

                                                                                        Meetups

                                                                                      • Kbase

                                                                                        Kbase

                                                                                      • Resources

                                                                                        Resources

                                                                                      • Digest

                                                                                        Digest

                                                                                      • CRM Marketplace

                                                                                        CRM Marketplace

                                                                                      • MVP Corner

                                                                                        MVP Corner







                                                                                          Design. Discuss. Deliver.

                                                                                          Create visually engaging stories with Zoho Show.

                                                                                          Get Started Now


                                                                                            Zoho Show Resources

                                                                                              Zoho Writer

                                                                                              Get Started. Write Away!

                                                                                              Writer is a powerful online word processor, designed for collaborative work.

                                                                                                Zoho CRM コンテンツ




                                                                                                  Nederlandse Hulpbronnen


                                                                                                      ご検討中の方







                                                                                                              • Recent Topics

                                                                                                              • Creator HTML page refresh

                                                                                                                Hi, I have added around 5 different html snippets in single creator page. I understand, I can refresh the entire page from page script using Navigational URLs https://help.zoho.com/portal/en/kb/creator/developer-guide/others/url-patterns/articles/navigational-urls
                                                                                                              • Zoho Desk - Custom Module Related List Columns on Tickets

                                                                                                                I have a custom module in Zoho Desk called Asana Tasks, each task has a lookup to a Ticket. On the Ticket I want to see the columns of the Asana Tasks in the related list . Is there a way to do this? Right now it just has the name of the record and I
                                                                                                              • Google Analytics import data inaccurate (as of October 11, 2025)

                                                                                                                We have Zoho Analytics connected to GA4 to import daily event data. This has been running without issue for a couple of years. However, a month ago we started noticing discrepancies. All data until October 10 lines up perfectly - October 11 onward is
                                                                                                              • Prevent user from viewing all records?

                                                                                                                I have a report that is meant to be used by vendors to view only the records that are assigned to them. All the vendor information is stored in a separate application, so I need to call a function to get the current user's ID (not the zoho user ID). The report settings criteria doesn't support using function calls, so instead I'm embedding the report in an html page like this: if (thisapp.Global.CurrentUserIs("Vendor")) {       personID = common.getLoggedInPersonID();       query = "Assigned_Vendor.ID="
                                                                                                              • What is your opinion of the new UI?

                                                                                                                Hi Everyone, I would like to see what everyone thinks of the new Zoho One Dashboard. I don't get it, but perhaps I'm missing something. What are your thoughts?
                                                                                                              • Zoho mail to Teaminbox

                                                                                                                Hello, We're searching for new mail program. Now I'm testing a bit with zoho mail and team inbox. My findings in the research: Pop mail throught zoho mail is almost instant. Any pop or imap via external provider takes a couple minutes to 15 minutes before
                                                                                                              • What are the OAuth scopes needed to access the Zoho MCP server?

                                                                                                                I think I'm authenticating with the MCP server endpoint successfully using a bearer token but I can't successfully initialize an MCP session. I'm using the official MCP Python sdk (https://github.com/modelcontextprotocol/python-sdk). I get as far as here
                                                                                                              • Account blocked for IMAP use

                                                                                                                Hello, My email client (Evolution) can't sync mail anymore. It gives the error: "Your account is temporarily blocked for IMAP use. This may happen if you exceed the maximum number of simultaneous IMAP connections allowed. Kindly try again after some time."
                                                                                                              • Is SMTP included in the free plan?

                                                                                                                My client has a Zoho Mail Free 14 day trial that ends tomorrow. She has set up a domain email address with SMTP on a third party app and is wondering if it will continue working once her plan downgrades to the free forever plan. Thanks
                                                                                                              • Zoho mail issue.

                                                                                                                I have verified my domain ohhoexpress.online by adding necessary TXT and MX records. But when I am sending email to any external email id, it is showing as zohomail.com. Also while I am sending mail to internal mail id, it is saying user not found whereas
                                                                                                              • My email is blocked from sending

                                                                                                                I get this message when I try to send any message .. > Unable to send message, Reason 554 5.1.8 Email Outgoing Blocked We have urgent emails to send and the issue continues to persist from yesterday. Please help us with this issue as soon as possibl
                                                                                                              • [WEBINAR] Smooth year-end closure with Zoho Books (KENYA)

                                                                                                                Hello there, This webinar is for all Kenyan businesses looking to wrap up their financial year smoothly! Join our free session to learn how Zoho Books can simplify your year-end process. What to expect from this webinar: - All the latest updates in Zoho
                                                                                                              • cannot recieve or send emails

                                                                                                                we are not recieving or cannot send emails.Shows sysytem error
                                                                                                              • Zoho Sites - contact us form

                                                                                                                I have added a contact us form to my website. I wanted to change the layout so I deleted the section of Contact Us form. When I again try to add the section of Contact Us form, it shows error that "This form already exists on this page."  I am unable
                                                                                                              • switching from POP3 to IMAPI do I need to change settings in Web email?

                                                                                                                hi so I am using Outlook with My Zoho mail, also have Verizon email /AOL. they no longer support POP3 and said imapi is much better, so I want to switch my ZoHo to imapai. I googled and it said i need to change it in my account....i looked at my account
                                                                                                              • What functionality is new in the Z025 Spaces UI dashboard compared to the previous Zoho One dashboard?

                                                                                                                My company is interested in creating a revamped dashboard this coming year, and are trying to weigh different platform options. The new Spaces UI is said to be a more "feature-rich" dashboard experience than the previous. Could a developer please explain
                                                                                                              • Collections Management: #5 Convenience on Offer, using Self-Checkout

                                                                                                                "Is this the right page? Oh, now, it wants my address again. Why am I being redirected?" These were the exact thoughts running through Karan's mind as he tried to subscribe to an application he genuinely liked. He clicked "Buy Now", expecting a quick
                                                                                                              • Uploading a signed template from Sign to Creator

                                                                                                                Good day, Please help me on how to load a signed document back into Creator after the process has been completed in Sign. Below is the code that I am trying, pdfFile = response.toFile("SignedDocument_4901354000000372029.pdf"); info pdfFile; // Attach
                                                                                                              • PROBLEMA

                                                                                                                Salve, non riesco a inviare email, e mi esce una tabela errore temporaneo. come posso risolvere il problema ?
                                                                                                              • Tip #50- A Closer Look at the Unattended Access Dashboard- 'Insider Insights'

                                                                                                                Having complete visibility and quick access to everything you need certainly makes managing multiple remote devices a lot easier, and that is precisely what the Unattended Access Dashboard in Zoho Assist is designed to offer. Once you go to the Unattended
                                                                                                              • How to update custom multi-user field in Zoho Projects?

                                                                                                                I'm trying to update custom multi-user fields in Zoho Projects via a Deluge function in CRM. The code I have so far is below. It works for updating standard project fields and single-line custom fields, but it does not work to update multi-user fields.
                                                                                                              • Tip of the Week #75– Manage your social media messages from a single shared inbox.

                                                                                                                Are you tired of jumping between apps or browser tabs to reply to your business's Facebook and Instagram DMs? Handling customer messages on social media might seem simple, but switching between multiple platforms can easily lead to lost messages, duplicate
                                                                                                              • Zoho Map integration tasks have changed - you need to "Locate all instances of Zoho Map integration tasks in your Deluge scripts by searching for the v1 marker... before 16 January 2026"

                                                                                                                The Zoho Map deluge integration task has been changed (as at 21 October 2025) to provide a more structured, JSON-like response. This change affects all three Zoho Map integration tasks (Geocode, Reverse Geocode, and Distance Between). More details can
                                                                                                              • Using files from Zoho CRM in Gemini/ChatGPT/Claude

                                                                                                                Hi all, I’ve got subscriptions to Gemini and a few other AI tools which I use for tasks like data enrichment, email composition, etc. In our workflow, we often receive various documents from clients — such as process workflows, BRDs/requirement documents
                                                                                                              • Zoho Analytics & Zoho Creator - Modified Time value

                                                                                                                I'm trying to use the Zoho Creator system field 'modified time' in Zoho Analytics, but it's consistently showing 12 hours 'out' In Zoho Creator In Zoho Analytics Is this a constant difference that I just need to correct with a timezone change - or is
                                                                                                              • Zoho CRM - Option to create Follow-Up Task

                                                                                                                When completing a Zoho CRM Task, it would be very helpful if there was an option to "Complete and Create Follow-Up Task" in the pop-up which appears. It could clone the task you are closing and then show it on the screen in edit mode, all the user would
                                                                                                              • Portal For Different Apps

                                                                                                                I found some older threads on this but didn't see anything very recent. I'm new to Zoho One so forgive me if my terminology is off a bit. I was hoping set up a single point of entry into Zoho One. So, many of the apps could be found in one single place
                                                                                                              • Calls undetected

                                                                                                                Zoho Voice records indicate my last call ended at 6:00 PM. All incoming and outgoing calls occurred between 6:00 PM and 7:00 PM.
                                                                                                              • Unable to Select Authenticated Domain as Sender

                                                                                                                We’ve already authenticated our domain, but it’s still not appearing in the sender list when we try to run a campaign. Could you please check what might be causing this issue?
                                                                                                              • Forever FREE Business Email with Zoho Mail

                                                                                                                Forever FREE Business Email with Zoho Mail: is it available?
                                                                                                              • Zoho Projects - Project Details on the Project Menu

                                                                                                                Hi Project's team, I've helped may businesses setup and use Zoho Project and one thing I see time and time again is confusion on where to find the Project Details information. I would be much more intuitive if Project Details was on the menu before Dashboard.
                                                                                                              • Introducing WhatsApp integration in Bigin

                                                                                                                Greetings! In today's business landscape, messaging apps play a significant role in customer operations. Customers can engage with businesses, seek support, ask questions, receive personalized recommendations, read reviews, and even make purchases—all
                                                                                                              • Zia Conversation Summary: Context at a glance for every customer interaction

                                                                                                                Hello everyone! Every customer conversation tells a story—but in CRM, that story is rarely in one place. A sales rep moving between multiple leads has to reopen long email threads, check call remarks, and revisit meeting notes just to remember what was
                                                                                                              • Zoho Projects - Show Task List as dropdown field on Task records

                                                                                                                Hi Project's Team, I noticed today that there is no field on a task record related to the task list it belongs to. A dropdown would be helpful for quickly moving tasks between lists while in a task. I know that you can go to "Other Actions" and choose
                                                                                                              • Changing the Default Search Criteria for Finding Duplicates

                                                                                                                Hey everyone, is it possible to adjust the default search criteria for finding and merging duplicate records? Right now, CRM uses some (in my opinion nonsensical) fields as search criteria for duplicate records which do nothing except dilute the results.
                                                                                                              • My followed tickets extension is not working under the All departments view

                                                                                                                Hi. I've installed the My followed tickets extension. However, when I try to open the extension under the all departments view, I get the following message: 'Sorry, this extension is not supported in the All Departments view.' How can I solve this p
                                                                                                              • Ticket Time Entry to Timesheet

                                                                                                                The title just about sums it up. I have searched here and not found anything relevant, but If I overlooked, then please set me straight.  We have staff that do nothing but close tickets in desk all day long. These tickets represent their timesheet. Is there a way to have this information sync or for a tech to go into their timesheet themselves and sync it with their tickets of the same timeframe?? We waste a ton of time doing timesheets and the old "Clock in/Clock out" isnt detailed enough for us!!
                                                                                                              • Calls undetected.

                                                                                                                The call is not showing on the call log.
                                                                                                              • Calls undetected

                                                                                                                Zoho is not reading calls made.
                                                                                                              • Multi-currency and Products

                                                                                                                One of the main reasons I have gone down the Zoho route is because I need multi-currency support.  However, I find that products can only be priced in the home currency, We sell to the US and UK.  However, we maintain different price lists for each. 
                                                                                                              • Next Page