Kaizen #201 - Answering Your Questions | Webhooks, Functions, and Schedules

Kaizen #201 - Answering Your Questions | Webhooks, Functions, and Schedules


Hello everyone!
Welcome back to another post in the Kaizen series!

We are incredibly grateful for all the feedback we received, and as promised, we will answer all the queries in this Kaizen series.

Last week, in our 200th post, we addressed one of the requests for a detailed guide on Token generation using the Python SDK.

This week, as requested by a user, we will do a detailed comparison between Webhooks, Functions, and Schedules.

Let's dive right in!

In modern CRM automation and business workflows, three key mechanisms stand out for executing custom logic and integrations—Webhooks, Functions, and Schedules. While these might seem similar at first glance, each serves distinct purposes and offers unique advantages depending on your use case.

Understanding when and how to use each approach is crucial for building efficient, scalable, and maintainable automation systems. This Kaizen post will help you navigate these choices with practical use cases and clear guidelines.
Let's see what each of these features means.


1. Webhooks

Event-driven external communication

Webhooks are HTTP callbacks that automatically trigger when specific events occur in your CRM system. Think of them as "reverse APIs" where instead of your app polling for changes, the system pushes notifications to your external endpoints.

Key Characteristics

  • Trigger: Can be triggered by workflows, approvals, and real-time event-based(record creation, updates, deletions).
  • Execution: External to the CRM platform. Send HTTP POST/GET requests to an external URL.
  • Response time: Near-instantaneous.
  • Reliability: Dependent on external endpoint's availability.

When should you use Webhooks?

  • Send simple, real-time notifications to external systems.
  • These are lightweight notifications where you just want to inform external systems that something happened in your CRM, but do not expect a response.
  • Trigger immediate actions in the external app.
  • When data changes happen in your CRM, you can use webhooks to inform the external system of the same and trigger specific actions in the external system.
  • Live notification and alerts.
  • Webhooks can send live notifications and alerts when an important event occurs in CRM. You can use multiple channels like SMS, emails, push notifications, etc., to notify of the event.

Examples

  • Notifying an external system when a lead is converted.
  • Triggering payment processing when invoice status changes.
  • Sending SMS immediately when a high-priority lead is created.

2. Functions

Server-side custom logic

Functions in Zoho CRM are custom code snippets written in Deluge scripting language to execute your custom business logic.

Key Characteristics

  • Trigger: Can be triggered by various events or called directly through APIs, workflows, or button actions.
  • Execution: Internal to the CRM platform as they run on Zoho CRM servers.
  • Response time: Fast.
  • Reliability: High, with in-built error handling mechanisms.
  • Support full Deluge scripting.
  • Can call external APIs and handle responses.

When should you use Functions?

  • Complex business logic that requires access to CRM data
    • Involves complex decision-making processes to compare and analyze data from multiple modules of your CRM or other service. Functions work great here as they can access data via APIs easily.
  • Data validation and transformation
    • You can check for data correctness to align with your business rules and convert them to the right format to use them as necessary at various places. Functions are ideal as they can validate against existing CRM data and apply complex transformation logic in real-time.
  • Custom workflow actions
    • You can orchestrate functions to perform multi-step processes across modules that standard workflow actions cannot perform.

Examples

  • Validating data against business rules before saving.
  • Implement approval workflows with multiple stakeholders.
  • Triggering complex multi-module workflows like converting a lead to a contact and account, triggering workflow rules for the new account, adding a follow-up task to the converted lead, and adding it to marketing campaigns.

3. Schedules

Time-Based Automation

Schedules in Zoho CRM are functions that are executed automatically at specific intervals of time. They are perfect for batch processing, data synchronization, regular clean up, and sending routine reminders.

Key Characteristics

  • Trigger: Time-based schedules like a cron job.
  • Execution: Internal to the CRM platform.
  • Response time: Depends on the schedule frequency.
  • Reliability: High, with automatic retry mechanisms.
  • Support full Deluge scripting.
  • Supports OAuth-based API calls and data fetching from internal or external systems.

When should you use Schedules?

  • Batch data processing
    • Instead of processing records one at a time as they are created or updated, you can batch them all in groups to be processed later, say after business hours. This is not only efficient but also does not impact system performance during peak hours.
  • Synchronize data
    • You can run a schedule to compare data between your CRM and external system and regularly update them to have up-to-date information on both systems.
  • Periodic reporting and analytics of your data
    • Create reports, update dashboards, and analytics like weekly sales performance, at set intervals to ensure your teams and stakeholders have the right data.
  • Maintenance and housekeeping
    • These are the usual behind-the-scenes tasks like archiving old data, deleting temporary files, etc., once a week to keep your CRM system running smoothly.

Examples

  • Daily data backup and archival
  • Weekly sales performance reports
  • Monthly lead scoring recalculation
  • Quarterly data cleanup and deduplication
  • Sync product data in CRM with an external ERP system every eight hours.
Here is a comparison table to help you decide which feature to use.

Feature
Webhooks
Functions
Schedules
Trigger
On CRM events(real-time)
On CRM events/manually
On a schedule(time-based)
Custom Logic
No(send data only)
Yes(custom script in Deluge)
Yes(deluge, time-driven logic)
External Calls
Limited(webhook only)
Extensive(APIs, CRM modules)
Extensive APIs, CRM modules)
Data Manipulation
No
Yes
Yes
Best For
Simple push notifications
Complex workflow automation
Recurring tasks
Examples
Notifying ERP, sending SMS
Auto-updating field, triggering emails
Daily follow-up, weekly performance report

Best Practices

  • Keep it simple. When you need a quick, no-frills integration, go with webhooks first.
  • Put your smarts in one place. Use functions whenever you need custom business rules or to tie together different parts of your CRM.
  • Schedule wisely. If you have regular batch jobs or routine tasks, set them to run on a schedule, ideally during off-peak hours so your team's daily operations are not slowed down by behind-the-scenes processes.
  • Watch and learn. Build in error logging and notifications for both functions and scheduled jobs, so you can catch and fix problems before they snowball.
  • Stay efficient. Remember that functions and scheduled scripts count against your API and execution limits. So, write lean code and keep an eye on your usage.

Begin by pinpointing your unique needs, weigh the pros and cons of each option, and be open to mixing methods when necessary. True automation success depends on solid error handling, ongoing monitoring, and regular upkeep.
We hope you found this post useful. Let us know if you have questions in the comments or drop us an email at support@zohocrm.com.

Cheers!

-----------------------------------------------------------------------------------------------------------------------------------

IdeaPrevious Kaizen post - Token generation in Python SDK

    • 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

    Nederlandse Hulpbronnen


      • Recent Topics

      • Re-hide fields when option is unselected

        Hi all Can anyone help me with this - when I create a 'show' field rule for when a dropdown option is selected, how to I make it so the 'show' option re-hides if that option is no longer selected?

      • Custom Fields

        There is no way to add a custom field in the "Timesheet" module. Honestly, the ability to add a custom field should be available in every module.

      • Consultant-Only Booking Page

        Zoho Bookings does not allow for Meeting Type OR Workspace-Wide booking pages to be turned off. This is detrimental to organizations that have territory-based or assigned accounts, because if prospects can go to these booking pages and either select the

      • Call result pop up on call when call ends

        I’d like to be able to create a pop up that appears after a call has finished that allows me to select the Call Result. I'm using RingCentral. I have seen from a previous, now locked, thread on Zoho Cares that this capability has been implemented, but

      • Custom Sorting based on other columns in table

        I need the ability to apply custom sorting to a text-based dimension in the X axis where the sorting is based on another column in the table. For example, I have a chart report where the X axis is a text label. I would like to be able to sort those text

      • Feature Request: Enable Custom PDF Layout Editor for All Modules (Including Package Slips)

        Hello Zoho Community and Product Team, I am writing to share a suggestion that would significantly enhance the customization capabilities within Zoho Books. We all appreciate the power of the Custom PDF Layouts (the "New" template engine) that allows

      • Is there a way to invoke deluge function from within a widget?

        Hi! I have custom functions in deluge and I was wondering whether there is any way to call this function through a widget? Something like on click of a button inside a widget, run the deluge custom function. Would this be possible?

      • Can a default task Priority be set?

        The "Priority" field in the Task layout does not allow a default to be set. Is there another way of doing it? Because the current default is "None" and the Zoho Kanban board design has selected this field as critical information to surface by including

      • Adding a threshold to a line chart based on date range

        I have a line chart that is tracking a percentage over time. It also has a filter for 50 different clients. I would like to create a threshold that is based on a portion of the date range. As I understand it, this would be done by adding a column to the

      • Resize Signature field dynamically

        On the tablet, it is perfect. But on smaller mobile devices and PCs, both web and application, it is too small for people to sign. Is there any plan to make the signature field size dynamically in the future update?

      • Super Admin Logging in as another User

        How can a Super Admin login as another user. For example, I have a sales rep that is having issues with their Accounts and I want to view their Zoho Account with out having to do a GTM and sharing screens. Moderation Update (8th Aug 2025): We are working

      • Zoho Creator Application - New User Not able to access the application

        In Zoho Creator, The newly added user not able to access the " Added Application" - User has received the Invitation Email, but while clicking "confirm Account" in the invitation Email, the following error message has appeared. "Sorry! you cannot accept

      • Deleting Salutation Field

        We have updated our lead input screen and 'Salutation' has appeared. This is not visible in the 'Edit Pgae Layout' screen so cannot be moved to 'List of Removed Fields'  Salutation is visible in the list in 'Customization - Fields' however I can only 'Edit' or 'Replace' I cannot delete and I do not need this field on my lead input screen.  Please can you advise how to get rid of this.  Screen shots can be provided if needed.  Thank you Tasha

      • Auto-Generate & Update Asset Serial Numbers using a custom function (Assets Module)

        Hello Team, I’ve been working on a script to automate one of our processes in Zoho FSM, and the core functionality has been successfully implemented. However, I’m encountering an issue related to serial number allocation, which is not working as expected.

      • Zoho Mail iOS app update: Access Delegated Mailbox.

        Hello everyone! You can now access the delegated mailbox from within the iOS version of the Zoho Mail app. To access the delegated mailbox: Open the Zoho Mail app. Go on to the 'Email' module. Tap the profile picture. Choose the delegated mailbox Please

      • How to convert Lead's country field from Text to Pick List

        Hi, I would like to change the default country field in ZCRM from text to pick list. It looks like not I can't delete default country field and recreate it as pick list nor can i create an new custom field country because such a label belong to default field. So what do I have to do? Any ideas? L

      • How create a draft via workflow?

        I wish to create a workflow rule for specific emails that creates a draft response - not an automatic email reply, but just a draft with a set response ready to be verified by an agent who can then manually select recipients. Alternatively, the workflow

      • Function #51: Transaction Level Profitability for Quotes

        Hello everyone, and welcome back to our series! In a previous post, we shared a custom function that could determine the profitability of a Sales Order. Today, we are presenting a similar function that calculates the profitability of a Quote. The setup

      • New feature: Invite additional guests for your bookings

        Hello everyone, Greetings from Zoho Bookings! We are happy to announce the much-awaited feature Guest Invite, which enhances your booking experience like never before. This feature allows additional participants to be invited for the bookings to make

      • Improved Contact Sync flow in Google Integration with Zoho CRM

        Hello Everyone, Your contact sync in Google integration just got revamped! We have redesigned the sync process to give users more control over what data flows into Google and ensure that this data flows effortlessly between Zoho CRM and Google. With this

      • الخصم على مستوى فاتورة المبيعات

        السلام عليكم ورحمة الله وبركاته مطلوب في إنشاء خصم على مستوى فاتورة المبيعات وليس على مستوى البند أريد معرفة الطريقة؟

      • VAT and Taxes option not available

        Dear ZOHO Team , The VAT and Taxes options in my ZOHO books account not available,I tried to find how to enable or check the way to use this option but unfortunately couldn't find it anywhere ,I'm in UAE ,kindly let me know what to do to solve this issue

      • Default Tagging on API-generated Transactions

        If one assigns tags to an Item or Customer, those tags get auto-populated in each line item of an Invoice or Sales Order when one creates those documents. However, if one creates the Sales Order or Invoice via the API (either directly coding or using

      • Direct Feed (Bank)

        Is Direct feed integration for AlRajhi and ADCB bank supported by Zoho Books in GCC/Saudi

      • Sales Order, Invoice and Payment numbers

        Hi zoho friends, it is me again, the slow learner. I'm wondering if there is a way to have it so the Sales order, invoice and payment numbers are all the same? It would be easier for me if they were the same number so there is not so many reference numbers

      • Customer Satisfaction (CSAT) Report

        From data to decisions: A deep dive into ticketing system reports The customer satisfaction (CSAT) report helps teams understand how customers feel about their support experience, identify service gaps, and continuously improve the help desk. It turns

      • Timeline Tracking Support for records updates via module import and bulk write api

        Note: This update is currently available in Early Access and will soon be rolled out across all data centers (DCs) and for all editions of Zoho CRM. The update will be available to all users within your organization, regardless of their profiles or roles.

      • Shifts in Zoho People vs Zoho Shifts?

        Hello Zoho People Team, We hope you are doing well. We are evaluating the Shifts functionality within Zoho People and comparing it to the standalone Zoho Shifts product. We’ve encountered comments and discussions suggesting that the Shifts feature inside

      • Disable fields in During action in Blueprint?

        Hi there. I've tried field disable (setReadOnly(true)) using client script and the event is onMandatoryFormLoad on detail page, assuming it'll work on blueprint fields, but it bears no result. Is this the expected behaviour? That we can't do this yet?

      • Develop and publish a Zoho Recruit extension on the marketplace

        Hi, I'd like to develop a new extension for Zoho Recruit. I've started to use Zoho Developers creating a Zoho CRM extension. But when I try to create a new extension here https://sigma.zoho.com/workspace/testtesttestest/apps/new I d'ont see the option of Zoho Recruit (only CRM, Desk, Projects...). I do see extensions for Zoho Recruit in the marketplace. How would I go about to create one if the option is not available in sigma ? Cheers, Rémi.

      • Subforms and automation

        If a user updates a field how do we create an automation etc. We have a field for returned parts and i want to get an email when that field is ticked. How please as Zoho tells me no automation on subforms. The Reason- Why having waited for ever for FSM

      • Allow Managers to Create Shifts for Their Departments in Zoho People

        Hello Zoho People Product Team, Greetings and hope you are doing well. This feature request is related to Zoho People - please don't move it to zoho one! We would like to submit a feature request regarding shift management permissions in Zoho People.

      • Zoho Learn and Zoho CRM integration

        I would like to see an integration between Zoho Learn and Zoho CRM. 1. To be able to add articles in a related list in all modules 2. Zia to suggest related articles in a Deal or Case or Lead 3. Ability to read / search articles during a call / follow

      • Maintain steady traffic to your domain: How Domain Aliasing helps

        Consider this scenario: An organization has its primary domain as administrator.com. Now it wants to shorten its domain to admin.com because it's simpler and easier to remember. However, changing the domain completely can cause the following problems:

      • Why Sharing Rules do Not support relative date comparison???

        I am creating a Sharing Rule and simply want to share where "Last Day of Coverage" (Date field) is Greater than TODAY (Starting Tomorrow). However, sharing rules don't have the option to compare a date field to a relative date (like today), only to Static

      • Workflow rule only allows 10 workflow per module

        Apparently a Zoho professional edition only allows 10 workflow rules per module. This makes workflow allocation literally impossible while allocating potential to different members of the team. I have 15 licenses. Is there a way in which related alerts can be varied? In other words, is it possible to have different related alerts be triggered with different rule criteria. so if I say, if potential is 'x' then trigger related alert 'x' and if potential is 'y' then trigger related alert 'y' Thanks,

      • IF Statement in Zoho CRM Formula Field

        Hi, I am attempting to write a formula field that will give me one result if one statement AND another statement are true, then a different value if the first statement AND a different statement are true, else 0. Stated differently: if account = destination

      • CRM Percent custom fields: When will it show the % symbol and behave like %?

        1. Actually Percent custom fields fail to show the % symbol. 2. When in formulas Percent fields work like number: 100 x 5% = 5 ideal world 100 x 5% = 500 what happens actually 3. When importing Percent fields the % symbol has to be removed and the data

      • Editing the Ticket Properties column

        This is going to sound like a dumb question, but I cannot figure out how to configure/edit the sections (and their fields) in this column: For example, we have a custom "Resolution" field, which parked itself in the "Ticket Information" section of this

      • "Total Hours" on Employee Attendance Report

        I'm learning that in Zoho jargon, "total hours" does not include paid breaks. Or at least not the way that my setup is working. That seems a little weird to me, since most jurisdictions in the US don't differentiate between time spent on paid break and

      • Next Page