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!

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

Previous Kaizen post - Token generation in Python SDK

See Also

• Help documentation:
  
• Functions in Zoho CRM
  
• Schedules
  
• Webhooks
• Kaizen directory
  

• Topic Participants

• Shylaja S

  

• 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

• emailing estimates

  Shows up in the customer mail logs as sent but nobody is receiving them, even when I send them to myself I don't get them ??? Something wrong with the mail server or my end ?

• Powering Customer Support with our women

  In Zoho Desk support, women make up 50% of our team. We see this as one of our strengths, reflecting the spirit of this year’s theme, "Give to Gain". Our women find their balance Women carry many responsibilities — they represent frontline support, lead

• How to use OR when filtering using two fields

  I want to create return a list of Account Names by filtering on Field1 = "yes" OR Field 2 = "no" I can't see how to use the OR in the filter.

• Mobile phone version not working well

  I am working on the Zoho Site Builder. In the preview the desktop version looks okay, but in the mobile phone preview many words are cut off in the weirdest (wrong) way. How can I fix that?

• Zoho - Please explain difference between Thread view and Conversation view on Ticket

  I have reviewed the help document here but am still not clear on the difference between the two views. As an example, I just had a back and forth on a ticket: - Customer emails support email. - I email back from Desk. - Customer responds back. - I email back from Desk. On the upper left drop down box on the ticket Zoho Desk now says this is "4 Threads" and "4 Conversations" . How is that 4 threads?? By my count it is 1 thread and 4 conversations (assuming by "conversation" Zoho means number of total

• Can't rename groups on Mac desktop app

  I'm working on an up-to-date Mac with a freshly downloaded Notebook app. I'm trying to rename a group within a notebook. Here I have, left to right, a note, a group, and a note. I select the group. On the top left, I select Action. On the dropdown, "Rename"

• Zoho Forms - Feature Request - Year Field

  Hi Zoho Forms Team, You currently have the following date and time fields: Date Time Date and Time Year and Month It would be useful if you could include a "Year" field For example a recent application I completed said "What year was your house built?"

• I need help to take Reports for tickets moved between departments.

  Hi, I need help to take Reports for tickets moved between different departments. Pls guide Shyam

• Export to excel stored amounts as text instead of numbers or accounting

  Good Afternoon, We have a quarterly billing report that we generate from our Requests. It exports to excel. However if we need to add a formula (something as simple as a sum of the column), it doesn't read the dollar amounts because the export stores

• Increase Round Robin Scheduler Frequency in Zoho Desk

  Dear Zoho Desk Team, We hope this message finds you well. We would like to request an enhancement to the Round Robin Scheduler in Zoho Desk to better address ticket assignment efficiency. Current Behavior At present, the Round Robin Scheduler operates

• Automation #6 - Prevent Re-opening of Closed Tickets

  This is a monthly series where we pick some common use cases that have been either discussed or most asked about in our community and explain how they can be achieved using one of the automation capabilities in Zoho Desk. Typically when a customer submits

• Zoho Desk EU slow/unresponsive

  Has anyone else got issues with ZohoDesk today in the EU? It takes an age to come back and if you do start typing something and try and send or save it looks like it times out. We are also getting this pic. ot I can't see anything on https://status.zoho.eu/

• EU DC Partial Outage Resolved: A Detailed RCA

  Incident Summary Due to an overload on one of the nodes in the EU DC for Zoho Desk, the system was unable to handle the heavy load, causing a slowdown in requests and resulting in a partial outage for customers with data residing in that node. On May

• Use Zoho Creator as a source for merge templates in Zoho Writer

  Hello all! We're excited to share that we've enhanced Zoho Creator's integration with Zoho Writer to make this combination even more powerful. You can now use Zoho Creator as a data source for mail merge templates in Zoho Writer. Making more data from

• Perfomance Management - Zoho People

  Hi team, I am looking for performance management data such as KRA, goals, feedback, appraisals, etc., in Zoho Analytics. However, I am unable to find these metrics while editing the setup. Could you please confirm whether these fields are available in

• Deprecation of the Zoho OAuth connector

  Hello everyone, At Zoho, we continuously evaluate our integrations to ensure they meet the highest standards of security, reliability, and compliance. As part of these ongoing efforts, we've made the decision to deprecate the Zoho OAuth default connector

• Good news! Calendar in Zoho CRM gets a face lift

  Dear Customers, We are delighted to unveil the revamped calendar UI in Zoho CRM. With a complete visual overhaul aligned with CRM for Everyone, the calendar now offers a more intuitive and flexible scheduling experience. What’s new? Distinguish activities

• Zoho Mail iOS app update: Display recipient's nickname on contact suggestion

  Hello everyone! In the most recent version(v3.3.1) of the Zoho Mail iOS app update we have brought in support to display recipient's nickname in contacts suggestion. Please update the app to the latest version directly from the App Store or using the

• Digest Février - Un résumé de ce qui s'est passé le mois dernier sur Community

  Bonjour chers utilisateurs, Le 26 février, nous avons organisé notre première session Ask the Expert de 2026. Nous sommes heureux de partager que ce fut une session très interactive, avec de nombreuses questions intéressantes posées par nos clients. Si

• Zoho CRM Case Notes - Share to Customer

  Hi team does anyone know the Api to set a note, against a case, to shared with customer? i cant seem to find it  cheers 

• Zoho Forms - Feature Request - Past Into Scanning/OCR Field

  Hi Zoho Forms Team, You recently introduced the OCR/Scanning field which I have found great use for with one client who receives work orders as a screenshot from one customer. I want to raise a feature request here which would make that field even more

• Synching changes to Stripe when changes are made in Zoho Billing

  We have a situation where we have merged customers in Zoho BIlling and then found out later that the payment in Stripe was not updated and still associated with the old customer record. The card gets updated and billed, but that payment is still associated

• Send out follow-up email in the same thread (threaded conversations in individual emails) from Zoho CRM

  Hi, I'm new to Zoho. I'm trying to send individual emails to my leads one by one. And I'll send out follow up email if I don't hear back from them later. However, instead of sending a new email, I want to reply in the same email thread so that the recipients

• Depositing funds to account

  Hello, I have been using Quickbooks for many years but am considering moving to Zoho Books so I am currently running through various workflows and am working on the Invoicing aspect. In QB, the process is to create an invoice, receive payment and then

• Is Zoho Sites still actively being developed?

  Hello, Is Zoho Sites still actively being developed as part of the Zoho ecosystem? I noticed that the What's New page (https://www.zoho.com/sites/whats-new.html) does not show any updates since Q1 2025. We were considering migrating our website from Squarespace

• FSM integration with Books

  Hi, I have spent a few months working with FSM and have come across a critical gap in the functionality, which I find almost shocking....either that, or I am an idiot. The lack of bi-directional sync between Books and FSM on Sales Orders/ Work Orders

• web to lead

  Can anyone help me how to create web to lead from zoho marketing automation

• Introducing Workqueue: your all-in-one view to manage daily work

  Hello all, We’re excited to introduce a major productivity boost to your CRM experience: Workqueue, a dynamic, all-in-one workspace that brings every important sales activity, approval, and follow-up right to your fingertips. What is Workqueue? Sales

• UI issue with Organize Tabs

  When looking at the organize Tabs window (bellow) you can see that some tabs are grayed out. there is also a "Add Module/Web Tab" button. When looking at this screen it's clear that the grayed out tabs can not be removed from the portal user's screen

• I created a signup form in Zoho Marketing Automation with the correct field mapping, but the data is not being reflected under Leads in Zoho CRM.

  web to lead from zoho marketing automation

• Pasted Images not being embedded in custom mail

  Hi, I'm making a custom report by email based on commentaries. I have the email ready, all working great except for images that are being pasted in the commentaries. Zoho deals with them as temp images and so it requires authentication to view them, something

• Kaizen #232 - Building a Ticket Escalation Mechanism from Zoho CRM

  Howdy, Tech Wizards! Picking up the thread from last week, we will continue our Zoho CRM and Zoho Desk integration. In Kaizen #231 - Embedding Zoho Desk Tickets in Zoho CRM, we built a Related List widget that displays open Zoho Desk tickets within the

• Inactive License for free account.

  I recently upgraded my Cliq subscription not my team (on the free version), are unable to login to their accounts. The error message received is Inactive License Looks like you have not been covered under the current free plan of users. Please contact

• Deluge scripts

  Why is there not a search function to make it easier to find the script of interest when modifications are required.

• Zoho Sheet for Desktop

  Does Zoho plans to develop a Desktop version of Sheet that installs on the computer like was done with Writer?

• Zoho Books (and other Finance Suite Apps) - Clickable Item Name on Invoices and Reports

  Hi Zoho Books team, It would be really helpful if the Item Name on Reports were clicable to take me to the item. The same on Invoices, often I am looking at an invoice and I want to look at the deails of a product. A link here would be helpful to jump

• Zoho Books - Payment Gateway - Revolut

  Hi Books Team, My feature request if to include the popular platform Revolut as a payment collection option on invoices in Zoho Books. Please upvote if you are also looking for this option.

• Searching for an item from within an invoice should show any item containing the string, not just those that begin with the string.

  Hello, I've found myself becoming increasingly frustrated with the limited line-item seach when adding new items to an invoice. The problem is that the characters being typed are only being matched from the beginning of the item name.  This might be usable

• How to Rank Tables by Row Count in Descending Order

  I am trying to understand the consume of lines that grow up so fast in the last week. Is there any way to create a pivot table or query to get TABLE NAME LINES in descending order?

• Dealing With One-Time Customers on Zoho Books

  Hello there! I am trying to figure out a way to handle One-Time customers without having to create multiple accounts for every single one on Zoho Books. I understand that I can create a placeholder account called "Walk-In Customer", for example, but I

• Next Page