Kaizen #198: Using Client Script for Custom Validation in Blueprint

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. 
Hello everyone!

Welcome back to another exciting Kaizen post. Today, we will explore how to use Client Script to handle a use case in Blueprint beyond Zoho CRM’s native features. This will solve the use case raised in this community post.

Quote
"At Zylker, the Admin wants to proceed with a Blueprint transition only if at least one of the four fields is filled during the transition "Gather Details" . However, Blueprints only allow fields to be marked as either mandatory or optional. There's no built-in way to enforce a rule like at least one required.The use case is to add a custom validation that allows the transition only if any one of these fields in the mandatory fields form is filled."

In this post,

  • Need for custom validations in Blueprint
  • Client Script Events related to Blueprint
  • Use Case
  • Solution
  • When to use this event?
  • Summary
  • Related Links


1. Need for custom validations in Blueprint

In Zoho CRM, Blueprint allows administrators to streamline and guide users through structured processes by defining states, transitions, and mandatory fields at each step. While Blueprints support marking fields as mandatory or optional during transitions, they do not support conditional logic like at least one of these fields must be filled, making a field mandatory based on another field’s value, validating date ranges, etc.

To accomplish such requirements, you can use Client Script.

2. Client Script Events related to Blueprint

The following Client Script events can be used in Blueprint.

  • beforeTransition - This event occurs before the transition states of a Blueprint, as per the process flow designed in the blueprint. Click here to know how to use this event.
  • onBeforeMandatoryFormSave - This event occurs when the user clicks the save button of the mandatory fields form, but before saving the values.
  • You can use this event to validate the data entered by the user and stop proceeding further.
  • onMandatoryFormLoad - This event occurs when the mandatory fields form appears on the screen. If you want to show a message or accomplish any custom action when the mandatory fields form loads, you can use this event.

Click here to see the related Events documentation. These events can be configured in both Standard and Canvas Detail Pages.


Notes
Note:

In Zoho CRM, you can make certain fields mandatory for a particular transition in a Blueprint. When a user tries to save a record without filling in these required fields, Zoho CRM stops the action and shows a popup asking the user to complete the missing details.This popup is called the mandatory field form. This form also appears when you make fields mandatory using Layout rules.

3. Use Case

Zylker is a manufacturing organization which uses Zoho CRM. The Admin wants to ensure that at least one of the following fields is checked by the user before proceeding from the "Gather Details" transition.
  • GST ID
  • Payment Terms
  • Trade License Copy
  • Expected Monthly Order Volume
The following is the Blueprint configuration is for the transition "Gather details".



Blueprints only support marking fields as mandatory or optional, and there's no native way to enforce “at least one required.” However, the admin wants to add a custom validation to allow transition only if any one of these fields is filled. 

Solution

  • To accomplish this requirement, you need to create a Client Script with onBeforeMandatoryFormSave Event.

  • Go to Setup > Developer Hub > Client Script. Click +New Script.
  • Specify the details to create a script and click Next.


  • Enter the following script and click Save.
  1. if (form.Lead_Status == "-None-") {
  2.   if (
  3.     form.GST_ID_collected ||
  4.     form.Payment_terms_shared ||
  5.     form.Trade_License_Copy_collected ||
  6.     form.Expected_Monthly_Order_Volume
  7.   ) { ZDK.Client.showMessage("Transition Successful"); }

  9.   else {
  10.     ZDK.Client.showAlert("You must check at least *one* field to proceed");
  11.     ZDK.Client.navigateTo('record_detail', {
  12.       module: 'Leads',
  13.       record_id: $Page.record_id,
  14.     }); }}

  • In the above script, form is the argument of the onBeforeMandatoryFormSave Event. It holds the values of the fields in the mandatory form and the current value of the base field. Here the base field is Lead Status.

  • By checking the value of Lead_Status, the script ensures it only runs during the "Gather details" transition and does not trigger for other transitions.

  • The ZDK.Client.navigateTo() function redirects the user to the Detail Page and halts the transition process.

  • $Page.record_id is the Client Script constant that returns the current record id.

  • To inform the user, ZDK.Client.showAlert( ) displays the message "You must check at least one field to proceed", clarifying why the transition did not occur."

  • Here is how the Client Script works.


  • In this GIF, you can see that the transition is halted if none of the fields in the mandatory form are selected. However, if at least one field is checked, the transition proceeds as expected.

5. Summary

In this post, we have discussed 

  • When to use mandatory form events?
  • How to stop a blueprint transition based on custom logic?
  • How to navigate to a page using Client Script?
  • How to fetch the current record ID using Client Script?






    • Sticky Posts

    • Kaizen #226: Using ZRC in Client Script

      Hello everyone! Welcome to another week of Kaizen. In today's post, lets see what is ZRC (Zoho Request Client) and how we can use ZRC methods in Client Script to get inputs from a Salesperson and update the Lead status with a single button click. In this

    • Kaizen #222 - Client Script Support for Notes Related List

      Hello everyone! Welcome to another week of Kaizen. The final Kaizen post of the year 2025 is here! With the new Client Script support for the Notes Related List, you can validate, enrich, and manage notes across modules. In this post, we’ll explore how

    • Kaizen #217 - Actions APIs : Tasks

      Welcome to another week of Kaizen! In last week's post we discussed Email Notifications APIs which act as the link between your Workflow automations and you. We have discussed how Zylker Cloud Services uses Email Notifications API in their custom dashboard.

    • Kaizen #216 - Actions APIs : Email Notifications

      Welcome to another week of Kaizen! For the last three weeks, we have been discussing Zylker's workflows. We successfully updated a dormant workflow, built a new one from the ground up and more. But our work is not finished—these automated processes are

    • Kaizen #152 - Client Script Support for the new Canvas Record Forms

      Hello everyone! Have you ever wanted to trigger actions on click of a canvas button, icon, or text mandatory forms in Create/Edit and Clone Pages? Have you ever wanted to control how elements behave on the new Canvas Record Forms? This can be achieved

      • Recent Topics

      • UPLOAD A CREATED PDF AUTOMATICALLY

        Using the html header pdf+print button, I have managed to find a way to have a user create a pdf using entered form data. Using the schedule button, I can have a "file uploaded" pdf mailed to someone as an attachment. The missing piece is to be able to add the pdf, created in that html page to a file upload field automatically? Right now one has to save it to computer and then upload it in a FILE UPLOAD FIELD. Any help would appreciated !  

      • Consolidated Department-wise Payroll Cost Summary Report

        Hello Zoho Payroll Team and Community, I am writing to discuss a reporting requirement regarding department-level expense tracking within Zoho Payroll. As we scale and manage salary distribution for employees across multiple departments, such as Accounts,

      • Write-Off multiple invoices and tax calculation

        Good evening, I have many invoices which are long overdue and I do not expect them to be paid. I believe I should write them off. I did some tests and I have some questions:  - I cannot find a way to write off several invoices together. How can I do that,

      • What's new in Zoho Sheet: Simplify data entry and collaboration

        Hello, Zoho Sheet community! Last year, our team was focused on research and development so we could deliver updates that enhance your spreadsheet experience. This year, we’re excited to deliver those enhancements—but we'll be rolling them out incrementally

      • How to remove chat icon from knowledge base?

        I have set up a knowledge base to hold FAQs and documentation. It is currently standalone, and not integrated into our website. On every page there is a chat button in the bottom left corner that says "We're offline, please leave a message." How can I

      • [ZohoDesk] Improve Status View with a new editeble kanban view

        A kanban view with more information about the ticket and the contact who created the ticket would be valueble. I would like to edit the fields with the ones i like to see at one glance. Like in CRM where you can edit the canvas view, i would like to edit

      • Automated Dismissal of Specific Notifications and Centralized Control of Toast Notification Settings

        Dear Zoho Team, I hope this message finds you well. We would like to request two enhancements related to notification handling within Zoho Desk: Automatic Dismissal of Specific Notifications: Currently, when certain actions are taken in the ticket list

      • Show field in spreadsheet view depending on other field value

        Hello. Not sure if this is possible but let's say i have spreadsheet view in Creator with four different fields Field A, B, C and D Then i have a field named Response which for one record could contain only one of the pre-definde choices below A, B, C

      • Intergrating multi location Square account with Zoho Books

        Hi, I have one Square account but has multiple locations. I would like to integrate that account and show aggregated sales in zoho books. How can I do that? thanks.

      • Zoho Learn Zapier Integration

        Hello all, Is there any plan to integrate Zoho Learn with Zapier? It seems almost all Zoho products are in Zapier, with the exception of Learn and Marketing Automation.

      • Notice: SalesIQ integration paused on Zoho Sites

        I have this notice on my Zoho Sites in the SalesIQ integration setup. Can someone assist? "This integration has been temporarily paused for users. Reconnecting SalesIQ after disconnection will not be possible until we provide further updates." thank

      • Differences between Zoho Books and Zoho Billing

        Without a long drawn out process to compare these. If you were looking at these Books and Billing, what made you opt for one and not the other. Thanks

      • New Feature : Copying tickets with all the contents such as conversations/history/attachments etc

        Sometimes our customers and distributors do create tickets (or send emails) which contain more than one incident in them and then also some of the further conversations which are either created by incorrect new tickets or replies to old tickets are being created as combined tickets. In such cases we require to "COPY" the contents of the tickets into separate tickets and merge them into their corresponding original tickets. The "CLONE" feature doesn't copy the contents (especially the conversations

      • Como se agregan los empleados

        Necesito saber si para agregar empleados los mismos necesitan tener licencias

      • Deluge Error Code 1002 - "Resource does not exist."

        I am using the following script in a Custom Button on a Sales Return. Basically, the function takes the information in the sales return (plus the arguments that are entered by the user when the button is pushed) and creates a return shipping label via

      • Adding multiple Attendee email addresses when adding a Zoho Calendar event in Zoho Flow

        I am trying to integrate Notion and Zoho Calendar via Zoho Flow. However, the Attendee email address supported by Zoho Calendar - Create event only supports one email address, so I am having difficulty implementing automation to automatically register

      • Books & Desk. Client mapping

        Hi, I’ve been using Zoho Books for several years and am now looking to improve my customer service. I'm experimenting with Zoho Desk and want to sync and map my client data from Zoho Books. However, it seems that mapping requires both contacts to have

      • Graceful Handling of Exceeded Option Limits

        Hi Zoho SalesIQ team. I would like to submit a feature request to deal with a bug in salesIQ Current Behavior (Bug): When a dynamic list passed to the Single Select Option Card contains more than 20 options, the Zobot stops responding (freezes/hangs)

      • System default SLA descriptions can't be modified

        The system default SLAs have identical descriptions for all SLA levels, but their settings differ. However, I am facing an issue where I cannot modify these descriptions and save the changes. The content of the description box can be edited but the changes

      • Adding non-Indian billing address for my Zoho subscription

        Hey Need help with adding a non-Indian billing address for my Zoho subscription, trying to edit the address to my Singapore registered company. Won't let me change the country. Would appreciate the help. Regards, Rishabh

      • How to create one ZohoCRM organisation out of a multi-organization?

        Hi, we have a multi-org including two different Zoho CRM organizations for two companies using respectively EUR and USD as default currency. I was wondering if there is any easy way to merge the two organizations into just one, so that users may access

      • Gray screen while signing documents

        We are all getting a "gray" screen when trying to sign documents in Zoho sign. Anyone else having issues?

      • Designing a practical Zoho setup for a small business: lessons from a real implementation

        I recently finished setting up a Zoho-based operating system for a small but growing consumer beauty business (GlowAtHomeBeauty), and I wanted to share a practical takeaway for other founders and implementers. The business wasn’t failing because of lack

      • Link Purchase Order to Deal

        Zoho Books directly syncs with contacts, vendors and products in Zoho CRM including field mapping. Is there any way to associate vendor purchase orders with deals, so that we can calculate our profit margin for each deal with connected sales invoices

      • Projects custom colors replaced by default orange

        Since yesterday, projects uploaded to Zoho, to which I had assigned a custom color, have lost the customization and reverted to the default color (orange). Has anyone else had the same problem? If so, how did you resolve it?

      • Interview booked through Invite but no Notifications

        We have a workflow that was developed through a developer/partner that was tested and worked. Today, we pushed a candidate through the process and invited them to an in-office interview. They were sent the booking link (as usual and as tested before successfully)

      • WebDAV support

        I need WebDAV support so that I can upload/download (and modify) documents from my local file system. Is anything planned in his direction?

      • Automatiser la gestion des SLA dans Zoho Desk avec Zoho Contracts

        Les équipes du service client s’efforcent d’assurer un support rapide, régulier et fiable pour garantir la satisfaction de chaque client. Les accords de niveau de service (SLA) permettent de clarifier les engagements en définissant les termes et conditions

      • iOS App doesn't refresh for Document Creation

        Hello Zoho team, I have created a workflow to be used on a mobile iOS device which starts in Zoho Creater and ends with a murge and store function that then opens the newly created document within the Zoho Writer app. This process is working great however

      • 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

      • Zoho DataPrep and File Pattern configuration

        I'm using Zoho data prep to ingest data from One Drive into Zoho Analytics... The pipeline is super simple but I can't any way to get all the files that I need. Basically I need to bring all the files with a certain pattern and for that I'm using a regex

      • Assistance needed: Activation of a domain

        Hello Zoho Support, I purchased the .com domain "primesolva.com" via Zoho 6 days ago. The domain is still pending, and I cannot access the DNS panel to add the TXT verification for domain ownership. Please confirm the registration status and help me activate

      • Operation not permitted

        I am trying to add an email address to the list of user but I am getting error Operation not permitted

      • Request to Permanently Delete Email User (info@mehbobgulf.com ) from Old Organization

        Please permanently delete the user email info@mehbobgulf.com It is still associated with my old Zoho organization. I cannot delete it because it shows ‘You cannot delete email. Zoho host’. I need to use this email in a new Zoho account.”

      • Client host [89.36.170.5] blocked using Spamhaus

        Hello please make make actions for delist ..... "Client host [89.36.170.5] blocked using Spamhaus"

      • Suggestion: Option to Re-run a migration

        As I'm going through a migration process, I like the IMAP migration tool, but it would be better if there were an option to re-run the same migration as configured. There's not even an option to copy/edit one that's already there. Just run if it hasn't

      • Issue with "Add Your Mobile Number"

        Hello, I am trying to sign up for email service for a domain name, and I cannot finish the authentication. When I enter my mobile number, I receive the message "We’re unable to send OTP to this mobile number. Please contact support-as@zohocorp.com". I

      • zoho mail non vérifié

        Bonjour, Il y'a un jour que j'ai acheté un domaine et toute les tentatives pour l'associé a mon compte shopify son vaine. j'ai essayé TXT sans suite après, j'ai essayer avec CNAME sans suite. j'aurais besoin de votre assistance pour associé mon mail.

      • Unable to send message;Reason:553 Relaying disallowed. Invalid Domain

        i have facing the issue "Unable to send message;Reason:553 Relaying disallowed. Invalid Domain" if i verify domain evertthing i did but still face the same error.

      • ZohoMail is so close to being Perfect BUT

        Why don’t you have HILIGHTING???!! I've been trying to find a substitute for Edison Mail but I want & need hilighting (preferably in more than just yellow)! Is this even on your To Do list? I’m so disappointed. 🙄

      • Next Page