Tip 31: How to make a field in a Zoho Creator form mandatory based on criteria

Tip 31: How to make a field in a Zoho Creator form mandatory based on criteria

Hi folks,

 

I'm sure most of you are familiar with the Mandatory property available in our form builder. It enables you to ensure that your users enter an input in a required field. If they don't enter an input in that field, they'll be unable to submit the form. All you need to do is select the required field and just enable (check the box) the Mandatory property that you'll find in the Field Properties pane.



Whenever a mandatory field is left empty during form submission, a default alert message will pop up and prevent form submission.

                                                         

This remains static for all users and doesn't override on any condition. However, there is a way to bypass this and allow a form to be submitted even without the mandatory field value. This tip will help you understand how to make a field mandatory based on a particular condition or criteria.

Let's take the example of an Employee Leave Form, which employees use to apply for leave. Regardless of the number of days employees plan to take off or have already taken, they need to add a record using the Employee Leave Form while applying for leave. While entering the details, they can choose from different leave types available. By default the five basic categories are: Sick Leave, Casual Leave, Compulsory Off, On Duty, and Others. The employees can choose Others if their reason doesn't fall in any of the above choices. However, if the employee selects the Others option and submits the form, the person approving the leave needs to know the reason to either approve or reject it. 

If you mark the Leave Type field as mandatory, this wouldn't work if the user chooses the Others option. Hence, we've come up with a workaround—marking a field mandatory based on a condition using Deluge. 

Let's go through it step by step.

Step 1: Create the form, with all the required fields

First, let's create a Leave Form to capture all the details. Here, we've used the following fields:
  •  Name (Name Field)
  •  Email (Email Field)
  •  Employee ID (Single Line field)
  •  Start Date (Date Field)
  •  End Date (Date field)
  •  Leave Type (Radio Button)
  •  Reason (Multi Line Field)
Please note that the Reason field is used to enable employees to enter the reason for their leave if they select the "Others" option in the Leave Type field.




Step 2: Hide the Reason field when the form loads

 

Whenever the employee selects Others in Leave Type , they need to fill in the reason for it in the Reason  field. However, we can hide the field otherwise and show it only when the employee selects Others. To do that, we can create a simple workflow on the "Created or Edited - Load of the Form" condition using the below script.



  1. hide Reason;


Step 3: Show the Reason field only when the employee selects the Others option

 

As mentioned earlier, if the user selects the Others option in the Leave Type field, then the Reason field needs to be shown. For that, create a workflow in "Created or Edited - User input of field" on the Leave Type field using the the below script.

  1. if(input.Leave_Type == "Others")
  2. {
  3.  show Reason;
  4. }
  5. else
  6. {
  7.  hide Reason;
  8. }


Step 4: Mark the required field as mandatory using Deluge

 

Here comes the important part of configuring the Reason field as mandatory whenever the user selects Others as the leave type. For this, we can use a simple if statement to validate the leave type and prompt them to enter the reason. If the users selects the Others option, they have to enter details in the Reason field as well.

 

If the Reason field is empty, then we can display an alert asking the user to fill in the reason for their leave. Create a workflow with "Created or Edited - Validation on form submission" and this part of the workflow will get triggered once the user clicks the Submit button of the form.

  1. if(input.Leave_Type == "Others" && input.Reason == "")
  2. {
  3. alert(Reason,"Kindly mention the reason for the leave");
  4. cancel submit;
  5. }
Check the below-image to see how the validation works in the live form and the alert gets displayed. On clicking the Submit button, a validation will run to check if the Reason field is left empty. If it is empty, it will prevent form submission and an alert message will be shown in the pop-up.



In order to notify the user which field has to be filled, we're using the Inline Alert. Once the user clicks the OK button in the above error pop-up, an alert with our customized message will be displayed below the respective field, as shown in the image below.


We hope you try out this tip out for when you need to make a field mandatory based on conditions. We'll get back to you soon with another useful tip!


    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





                                                            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

                                                                                                              • How do I bulk archive my projects in ZOHO projects

                                                                                                                Hi, I want to archive 50 Projects in one go. Can you please help me out , How can I do this? Thanks kapil
                                                                                                              • Copy contents of File Upload Field into Workdrive

                                                                                                                Hello, I have set up our CRM so that a Workdrive folder is automatically created for each Deal via workflow, this adds the id of the folder into a dedicated field. We also have a field on each Deal called 'Approved Layout', which is a file upload field.
                                                                                                              • Kaizen #198: Using Client Script for Custom Validation in Blueprint

                                                                                                                Nearing 200th Kaizen Post – 1 More to the Big Two-Oh-Oh! Do you have any questions, suggestions, or topics you would like us to cover in future posts? Your insights and suggestions help us shape future content and make this series better for everyone.
                                                                                                              • Deleting a memorized email address

                                                                                                                How can I delete a memorized email address? Even though the address has been deleted from Contacts, Zoho mail still auto suggests the address when typing it into the TO field. Thanks!
                                                                                                              • Multiple Cover Letters

                                                                                                                We are using the staffing firm edition of Recruit and we have noticed that candidates cannot add more than one cover letter. This is a problem as they might be applying for multiple jobs on our career site and when we submit their application to a client,
                                                                                                              • Introducing Record Category in CRM: Group options to see record status at a glance.

                                                                                                                Release update: Currently available for CN, JP, and AU DCs (all paid editions). It will be made available to other DCs by mid-March. Hello everyone, We are pleased to introduce Record Category in Zoho CRM - a new capability where the user can get an overview
                                                                                                              • 553 Relaying disallowed. Invalid Domain - gzkcompany.ro

                                                                                                                Hi there, Can you please assist me in getting the right domain settings? I just renewed my domain subscription, after expired and i got error: 553 Relaying disallowed. Invalid Domain - gzkcompany.ro Zoho mail can receive emails, but its impossible to
                                                                                                              • Not able to receive emails for a while

                                                                                                                I am not able to receive emails for a while now.
                                                                                                              • Confirmation requested: eligibility and process to downgrade to Forever Free — tenant bigbanghawking.com

                                                                                                                Thank you for your reply. I am testing Zoho Mail from Brazil with the tenant bigbanghawking.com (endpoint: mail.zoho.com) and we are currently on the Premium trial that expires 21/01/2026. Before deciding whether to pay or cancel, I need written confirmation
                                                                                                              • Create Tasklist with Tasklist Template using API v3

                                                                                                                In the old API, we could mention the parameter 'task_template_id' when creating a tasklist via API to apply a tasklist template: https://www.zoho.com/projects/help/rest-api/tasklists-api.html#create-tasklist In API v3 there does not seem to be a way to
                                                                                                              • Zoho API v2.0 - get ALL users from ALL projects

                                                                                                                Hello,        I've been trying to work on an automatization project lately and I find it difficult to work with this strict structure. To be more explicit, if i would like to get all users participating in a project i would need to get all projects first.       Same thing with projects. If i want to get all projects, I would need to get all portals first.        The problem with this aproach is that it consumes a lot of time and resources.             I want to ask if there is another way of getting
                                                                                                              • [Webinar] Solving business challenges by transitioning to Zoho Writer from legacy tools

                                                                                                                Moving to Zoho Writer is a great way to consolidate your business tools and become more agile. With multiple accessibility modes, no-code automation, and extensive integration with business apps and content platforms, Zoho Writer helps solve your organization's
                                                                                                              • الموقع لا يقوم بالسداد

                                                                                                                السلام عليكم ورحمة الله وبركاته وبعد من أمس وانا احاول السداد للدومين YELLOWLIGHT ولا اتمكن من السداد اقوم بتعبئة جميع البيانات ولكن دون جدوى يطلع لى حدث خطأ ما
                                                                                                              • New in Office Integrator: Enhanced document navigation with captions and cross references

                                                                                                                Hi users, We're pleased to introduce captions, table of tables and figures, and cross-references in the document editor in Zoho Office Integrator. This allows you to structure documents efficiently and simplify document navigation for your readers from
                                                                                                              • Enhancements for Currencies in Zoho CRM: Automatic exchange rate updates, options to update record exchange rates, and more

                                                                                                                The multi-currency feature helps you track currencies region-wise. This can apply to Sales, CTC, or any other currency-related data. You can record amounts in a customer’s local currency, while the CRM automatically converts them to your home currency
                                                                                                              • Live Chat for user

                                                                                                                Hi everyone, I’m new to Zoho Creator and wanted to ask if it’s possible to add a live chat option for all logged-in portal users so they can chat internally. I’m trying to create a customer portal similar to a service desk, but for vehicle breakdowns,
                                                                                                              • Where Do I set 24h time format in Cliq?

                                                                                                                Where Do I set 24h time format? Thanks
                                                                                                              • New activity options for workflows

                                                                                                                Greetings, We are excited to announce the addition of two new dynamic actions to our workflow functionality: Create Event and Schedule Call. These actions have been thoughtfully designed to enhance your workflow processes and bring more efficiency to
                                                                                                              • 🎉 ¡Seguimos trayendo novedades a Español Zoho Community! 🎉 Confirmada la agenda y ubicación para los Workshops Certificados

                                                                                                                Si todavía no te has hecho con tu entrada para nuestros Workshops Certificados del próximo 26 y 27 de marzo o, por el contrario, estabas esperando que confirmáramos dónde los celebraremos, ¡este post es para ti! 📍¿Dónde nos vemos?📍 Nuestros Workshops
                                                                                                              • User is already present in another account error in assigning users to marketing automation

                                                                                                                Hello everyone Greeting, I had a problem in assigning user in marketing automation, when I try to add it I see this error: (User is already present in another account error) what should I do?
                                                                                                              • How do I get complete email addresses to show?

                                                                                                                I opened a free personal Zoho email account and am concerned that when I enter an email address in the "To", "CC", fields, it changes to a simple first name. This might work well for most people however I do need to see the actual email addresses showing
                                                                                                              • What's New in Zoho POS - January 2026

                                                                                                                Hello everyone, Welcome to Zoho POS’s monthly updates, where we share our latest feature updates, enhancements, events, and more. Let’s take a look at how January went. Sort and resolve conflicts Conflicts are issues that may arise when registers and
                                                                                                              • Removing Tables from HTML Inventory Templates - headers, footers and page number tags only?

                                                                                                                I'm a bit confused by the update that is coming to HTML Inventory Templates https://help.zoho.com/portal/en/kb/crm-nextgen/customize-crm-account/customizing-templates/articles/nextgen-update-your-html-inventory-templates-for-pdf-generator-upgrade It says
                                                                                                              • Outlook is blocking incoming mail

                                                                                                                Outlook is blocking all emails sent from the Zoho server. ERROR CODE :550 - 5.7.1 Unfortunately, messages from [136.143.169.51] weren't sent. Please contact your Internet service provider since part of their network is on our block list (S3150). It looks
                                                                                                              • Not receiving email from customers and suppliers

                                                                                                                I am getting error . most of the customers tell me not able to send me email please check i have attached screenshot
                                                                                                              • Create user

                                                                                                                Hello I want to create user, but i get this error Unusual activity detected from this IP. Please try again after some time.
                                                                                                              • File emails in Shared email folder

                                                                                                                Hi, I am unable to allow users to collaborate in Shared email folders: User 1 shares a folder let's say "SharedTopic" with full permissions Users 2 and 3 can see this folder but are unable to add emails to this folder or search in this folder. For example,
                                                                                                              • Consolidated report for multi-organisation

                                                                                                                I'm hoping to see this feature to be available but couldn't locate in anywhere in the trial version. Is this supported? The main aim to go to ERP is to have visibility of the multi-organisation in once place. I'm hopeful for this.
                                                                                                              • Integrating Zoho Suite and apps more with Linux

                                                                                                                I just got introduced with Zoho just couple of months ago, and I've already planned to contribute to it, even though it's not an open-source software. Still I have found it's potential to beat the tech giants and still being respective towards data privacy
                                                                                                              • How to Switch from Outlook for Mac to Outlook for Windows

                                                                                                                The most often used file formats for users to manage crucial data are OLM and PST files. PST files keep a copy of data on the configured system from Outlook, while the OLM file contains the Mac Outlook data items, which are only accessible with Outlook
                                                                                                              • Zoho CRM for Everyone's NextGen UI Gets an Upgrade

                                                                                                                Hello Everyone We've made improvements to Zoho CRM for Everyone's Nextgen UI. These changes are the result of valuable feedback from you where we’ve focused on improving usability, providing wider screen space, and making navigation smoother so everything
                                                                                                              • Stop the Workarounds: We Need Native Multi-Step Forms

                                                                                                                After over 17 years of community requests, I'm hoping the Zoho team can finally address the lack of native multi-page form support in Zoho Creator. This has been one of the longest-standing feature requests in the community, with threads spanning nearly
                                                                                                              • Name autocomplete

                                                                                                                Hi, During searching emails the web tool does not always propose the auto-completion of the saved emails. As a result I either have to go to contacts and look up the exact email, or the exact full name including the middle name and any dots, which is
                                                                                                              • Are custom portals accessible on the Zoho learn smartphone app?

                                                                                                                In other words, can users external to my organisation, once signed up, use the app in the same way as internal users? Thanks
                                                                                                              • How to increase my Zoho sign limit.

                                                                                                                I cannot send a document/contract for signature. Zoho sign says I reached my monthly limit. May I know how to fix this please? Thanks! 
                                                                                                              • Can not add m365 outlook account to zohomail.

                                                                                                                I am attempting to use zoho mail as an imap client to add my outlook.com m365 account. In the m365 exchange admin center i have made sure the imap is enabled. In zoho mail i go to settings, mail accounts, add account, add imap account, i select "outlook",
                                                                                                              • Unable to attach Work Order / Service Appointment PDF to Email Notifications (Zoho FSM)

                                                                                                                I’m trying to include the Work Order PDF or Service Appointment PDF as an attachment in Email Notifications (automation/notification templates), but I don’t see any option to attach these generated PDFs. Is this currently supported in Zoho FSM? If not,
                                                                                                              • local file csv import problem

                                                                                                                The issue occurs when I upload a CSV file via Databridge. In the preview, everything looks correct — the values are in the proper columns. However, after clicking Import, the first column becomes empty, and the values from that column appear in a new
                                                                                                              • Función Deshacer y Rehacer

                                                                                                                Hola. Soy un reciente usuario de Zoho Notebook que he migrado desde Evernote. He encontrado en falta una función que considero muy importante: un botón para "deshacer". Es frustrante cuando se borra un parte del texto o un archivo de una nota, generalmente
                                                                                                              • Tip #59- Technician Console: Exploring View option- 'Insider Insights'

                                                                                                                Hello Zoho Assist Community! Ever wondered how technicians adapt quickly during a live support session? Imagine a customer reaching out with an issue that’s disrupting their work. The technician starts a remote session and begins troubleshooting right
                                                                                                              • Next Page