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 #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.

    • 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

    • Recent Topics

    • Saving issue

      First problem I opened a MS word file in writer. after the work is done, it does not save instantly, I waited for like 10min and it still did not save. second problem When I save a file, then file gets saved as another copy. I just did save, not save

    • Serious problem with file that contains non-ASCII characters

      I imported many pdf files from Evernote whose names contain Hebrew characters, such as ח רבעוני - ביטוח חיים - סוף רבעון 3 - לשנת 2025.pdf I have two very serious problems: (1) Zoho Notebook cannot open the pdf file; (2) It cannot download the pdf file.

    • Zoho Finance Limitations 2.0 #3: Can't assign a Contact to a Finance Record (estimate, sales order or invoice)

      If you use a business to business scenario with different contact people within the company you can't assign a finance record (estimate, invoice, etc...) to that person. Why this matters? No way to find out which person placed the order without manual

    • Zoho Community Digest — Febrero 2026

      ¡Hola, comunidad! Un mes más os traemos las novedades más interesantes de Zoho para febrero de 2026, incluyendo actualizaciones de producto publicadas oficialmente, cambios de políticas y noticias del ecosistema. Pero antes de lanzarnos a las actualizaciones,

    • 【Zoho CRM】商談タブへのデータインポート

      Zoho使用前にエクセルで管理していた商談情報を、Zoho一括管理のため、商談タブにインポートしたいのですが、お客さまの氏名だけが紐づけられませんでした。 「Zoho CRMにインポートする項目を関連付ける」のところが画像のようになっています。 （弊社では、「姓」を「★個人データ名」という項目名に変更し、フルネームを入れて使用しています。） どのようにしたら氏名をインポートできるかご存じの方がいらっしゃいましたら、ご教示いただきたく、よろしくお願いいたします。 （投稿先が間違っていましたらご指

    • CRM Cadences recognise auto-responses

      I have leads in a Cadence. I get an auto-responder reply "I'm out of the office..." Normally Cadences seems to know that isn't a real reply and keeps the lead enrolled in the cadence. However, today, Cadences has UNENROLLED a Lead who sent an auto-reponse

    • SalesIQ Chat Notifications

      I am the admin of our salesIQ implementation. About two weeks ago, I started hearing/seeing notification for ALL chats messages from monitored agents/chat participants. I don't need to see these, we have a manager who deals with this. I can't stop the

    • How to Create a Fixed Sliding Time Window (D-45 to D-15) in Zoho Analytics ?

      Hello, I would like to create a report in Zoho Analytics based on a sliding time window between D-45 and D-15, with a fixed snapshot of that specific period. The data displayed should strictly reflect activity recorded between D-45 and D-15 only, without

    • Export Zoho Books to another accounting package?

      Is an export feature to Quickbooks or Accpac available (or a form that is easily imported by them)?  My reasons: 1) my accountant, who prepares my corporate tax return, prefers to work with their own accounting system.  If I can convert Zoho books a form that is easily importable into Quickbooks or an Accpac format, this process would be easy. 2) I don't want to keep my data in a proprietary format on the cloud somewhere without a way to easily extract it to a format that can be read my a well established

    • Anchor Links in Dashboards

      Hello,  Our dashboards frequently have multiple sections that would be more easily skipped between using anchor links. Please consider adding an anchor link feature to the text widget? This could be done by adding an anchor link option to the text widget next to the "remove" option (see screenshot). The option would assign an ID to the <div> containing the text widget in the live dashboard. Then, the chosen ID could be linked using a traditional <a href="#link_id"> in the html section of the text

    • Introducing Auto-trigger for Screening Bot

      Still manually sending screening tests after every application? Not anymore. With Auto-trigger for Screening Bot, screening now begins automatically. When a candidate applies for a job that has an attached assessment, Recruit checks whether the test has

    • Importing into Multiselect Picklist

      Hi, We just completed a trade show and one of the bits of information we collect is tool style. The application supplied by the show set this up as individual questions. For example, if the customer used Thick Turret and Trumpf style but not Thin Turret,

    • Add line item numbers to sales order/invoice creation page

      It would be really helpful if there were line numbers visible as we are creating a sales order and/or invoice. There are line numbers visible in the PDF once the sales order is created. I would like to be able to see the line numbers as I am building

    • API to Apply Retainer invoice payment to Invoice

      Hi Team, I could not find  API to apply the Retainer invoice payment to existing Invoice. Can you please help ? Attaching the screenshot

    • Reconciling a month with no transactions

      I'm treasurer for a small non profit cemetery association and I'm trying to reconcile a bank statement for a month that did not have any transactions. Do I skip the month entirely and go a month with transactions?

    • Customize your Booking page using Zia

      We’re excited to introduce an AI-based enhancement that automatically customizes your booking page effortlessly. By simply providing your business website URL, Zoho Bookings can automatically design a booking page that matches or complements your brand

    • Multiple header in the quote table???

      Hello, Is it possible in Zoho CRM to add multiple headers or sections within the Quote product table, so that when the quote is printed it shows separate sections (for example “Products” and “Services”)? To clarify, I’m asking because: This does not appear

    • Zoho mail to contacts and leads, but not to accounts?

      We use the accounts tab a lot for our business because they can be linked to the sales orders. Now we want to use the mail add on to link communication of our emails to our accounts. However this is only possible for contacts and leads? It would be convenient

    • API keys not showing in ZeptoMail dashboard

      Hi there, I'm hoping someone can provide some assistance as support isn't replying. I am trying to configure my transactional emails, but the dashboard doesn't show any of my API details - the `div` is there but it's emtpy. Every time I click "Generate

    • How Does Knowledge Base Search and Article Recommendation Work?

      Hello, I would like to understand how the Knowledge Base search engine works. Specifically, does it search based on: The article title only? The full article content? Both, the article and the content? Keywords? Tags? Also, how does the system determine

    • Zoho Books/Inventory - Restrict Items With Pricebook

      Hi Zoho Team, I'm trying to address as use case where a client needs to restrict which products certain customers can purchase. I have been able to find a way to do this based on the current Zoho Books or Zoho Inventory configuation. My feature request

    • Best Way to Integrate Zoho Campaigns with Amazon SES Without Third-Party Tools

      I am looking for the most seamless and efficient method to integrate Zoho Campaigns with Amazon SES. My goal is to avoid using any third-party automation tools like Zapier, Make, or Pabbly, and instead, leverage Zoho's native capabilities for this integration.

    • How to charge Convenience fee OR payment gateway charges to the end client who is paying the invoice?

      Hello, I am creating this topic after having discussions with various sets of users and have understood that with people moving more and more to digital payments, it is important for the client to enable the "Convenience fee" kind of scenario. I have

    • Card payment surcharge?

      Hi, I would like to offer my customers the ability to pay invoices by card (using the PayPal integration). However, PayPal charges me around 5% to receive a card payment, and I would like to pass on this cost to my customer by way of a card payment surcharge. Is there any way for Zoho Invoice to be set up to automatically add a defined "card processing fee", say 5% of the invoice total, if the customer elects to pay by card? I don't want to add this on to invoice manually, since most of my clients

    • Javascript Error

      I don't know how this happened but I'm constantly getting popup windows with Javascript coming from Notebook. I have no idea why this is happening. Screen shot attached. Thanks, Joe Berry

    • Zoho POS App Hanging Issue – Sales Becoming Difficult

      The Zoho POS app frequently hangs and becomes unresponsive during billing, making it very difficult to complete sales smoothly. This commonly happens while adding items, during checkout, or at payment time, especially during peak hours. These issues cause

    • Tip #62- Exploring Technician Console: Send Ctrl + Alt + Del- 'Insider Insights'

      Hello Zoho Assist Community! This week, we’ll be exploring the Send Ctrl + Alt + Del option in the Technician Console. Let’s jump right in. System administrators often rely on Ctrl + Alt + Del when managing remote devices that have unresponsive applications

    • Disappearing Mouse cursor in Zoho Mail / Windows 11 (Chrome + Edge)

      I'm seeing an issue when writing mails with the light theme with the mouse cursor being white and the document area also being white - making it nearly impossible to see the mouse cursor. I see the problem on Windows 11 under Chrome and Edge. (Yet to

    • SKUs for Invoices, POs, etc.

      It doesn't appear that one can enable SKU display on invoices, POs, etc. This is problematic, and I don't see a good reason why this shouldn't be an option. Some of our vendors and customers use this in their system. Every other identifier code is available

    • how to avoid duplicate customer

      How can i avoid to create a duplicate customer. I charged a same customer with two different plans and it showed up twice in my customer list and subsequently in Zoho books contacts. It creates confusion to have a same customer appears multiple times in customer or contact list. How can i avoid it.

    • Tags with spaces

      I imported notes from Evernote where tags can have spaces in them (for example "House Expenses" or "House Improvements". The import worked fine. Now I want to add a new note and assign it a tag. As soon as I type "House" followed by the space I get a

    • RSC Connectivity Linkedin Recruiter RPS

      It seems there's a bit of a push from Linkedin Talent Solutions to keep integrations moving. My Account Manager confirmed that Zoho Recruit is a Certified Linkedin Linkedin Partner but does not have RSC as of yet., (we knew that :-) She encouraged me

    • im facing issue on generate the Estimate price

      i couldn't understand what is the issue , i cant generate Estimate price where is the issue

    • cannot be able to add user

      Dear team I tried to add a new user for sales team, but after entering the OTP its showing error message cannot add now

    • Changing an existing item to different accounts & inventory-tracked

      Hi everyone, I have an item in Zoho Books that was originally set up as a non-inventory item. Over time, I associated it with different sales and purchase accounts, and I now have many invoices, bills, and reports that use this item. My business process

    • How do I edit the Calendar Invite notifications for Interviews in Recruit?

      I'm setting up the Zoho Recruit Interview Calendar system but there's some notifications I don't have any control over. I've turned off all Workflows and Automations related to the Calendar Scheduling and it seems that it's the notification that is sent

    • big 5 accounts

      how do you find what accounts are listed as Big 5 ?

    • Zoho recruit's blueprint configuration is not functioning as mapped

      Current Status: Zoho Blueprint is not functioning as configured. Issue: We are moving a Candidate status in Zoho Recruit "for active file" but we encountered: "Status cannot be changed for records involved in Blueprint." This happens to various client

    • Delay in rendering Zoho Recruit - Careers in the ZappyWorks

      I click on the Careers link (https://zappyworks.zohorecruit.com/jobs/Careers) on the ZappyWorks website expecting to see the job openings. The site redirects me to Zoho Recruit, but after the redirect, the page just stays blank for several seconds. I'm

    • favorites no longer listed

      Hello, I can no longer navigate to my Favorites from the pulldown at the top of my grid view (see attached screenshot). I wasn't able to find it anywhere! Please help me display my Favorites. Thank you!

    • Next Page