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

• WhatsApp phone number migration

  Hi @Gowri V and @Pheranda Nongpiur, Thanks for implementing the promised enhancements to the integration between Zoho CRM and WhatsApp. The previous discussion has been locked, so I'm opening this new one. I am copying below a specific

• 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?

• Suggestions for Improved Table Management and Dashboard Filter Controls in Zoho Analytics

  Dear Zoho Analytics Community, I hope you are doing well. I would like to share a few suggestions based on issues I am currently experiencing while working with visualizations and dashboards. Firstly, when I create a new visualization using the Sales-Order

• SPF: HELO does not publish an SPF Record

  I am using Zoho mail. Completed all of the required prerequisites from the dashboard to avoid any issues with mail delivery. But when checking on mail-tester.com getting the following error. Can anyone help me solve this?

• How do I create an update to the Cost Price from landed costs?

  Hi fellow Zoho Inventory battlers, I am new to Zoho inventory and was completely baffled to find that the cost price of products does not update when a new purchase order is received. The cost price is just made up numbers I start with when the product

• Price Managment

  I have been in discussions with Zoho for some time and not getting what I need. Maybe someone can help explain the logic behind this for me as I fail to understand. When creating an item, you input a sales rate and purchase rate. These rates are just

• Actual vs Minimum

  Hi all, I am sure I am not the only one having this need. We are implementing billing on a 30-minute increment, with a minimum of 30 minutes per ticket. My question is, is there a way to create a formula or function to track both the minimum bill vs the

• Generate leads from instagram

  hello i have question. If connect instagram using zoho social, it is possible to get lead from instagram? example if someone send me direct message or comment on my post and then they generate to lead

• Kaizen #234 - Automating Deal Handoff with Zia Assistant API, Workflow, Deluge, and Widget in Zoho CRM

  Hello all! Welcome back to a fresh Kaizen week. In this post, we will explore how to automate the deal handoff process in Zoho CRM using Zia Assistant API + Workflow + Deluge + Widgets. Here’s how the final output looks when a deal is reassigned 1. Deal

• How do you print a refund check to customer?

  Maybe this is a dumb question, but how does anyone print a refund check to a customer? We cant find anywhere to either just print a check and pick a customer, or where to do so from a credit note.

• Ability to assign Invoice Ownership through Deluge in FSM

  Hi, As part of our process, when a service appointment is completed, we automated the creation of the invoice based on a specific business logic using Deluge. When we do that, the "Owner" of the invoice in Zoho FSM is defaulted to the SuperAdmin. This

• All new Address Field in Zoho CRM: maintain structured and accurate address inputs

  Availability Update: 29 September 2025: It's currently available for all new sign-ups and for existing Zoho CRM orgs which are in the Professional edition exclusively for IN DC users. 2 March 2026: Available to users in all DCs except US and EU DC. Latest

• Enhancement to ICR’s field prompting: Preferred data extraction using advanced field prompting

  Dear Customers, We hope you’re well A quick background Intelligent Character Recognition (ICR) comes as part of Zia’s optical recognition capability called Zia Vision. When we introduced it last April, the data extraction was training-based and was applicable

• See a list of all records enrolled in a cadence?

  I am looking for a way to see a list of all leads or contact currently enrolled in a cadence. I do not see any way to do this through the cadence UI.

• Limitation in chart of accounts

  There is a limitation of 4000 accounts in chart of accounts  Zoho needs to remove this limit

• How do I change the account bank charges are charged to?

  I want bank charges charged to my Credit Card Fees account. Is there a way to do this?

• Real signature in Zoho Expense PDF report ?

  Hello ! Is there a way to put a real signature on the signature line when a PDF report is generated in Zoho Expense? Through Zoho Sign or another way? Can't seem to make it work.

• Copy paste settings

  Hello all i have 2 organizations running in ZOHO books in one organization i have customised Tax rates, codes and customized templates instead of manually doing again in org 2 can i have some shortcut to copy paste or export and import??

• Custom TDS on Vendor Credits via API

  Hi, We are using Zoho Books APIs for posting Bills and vendor credits. We are unable to post custom TDS amount posting vendor credits. Can you please share the API spec and Payload that need to be sent for Custom TDS for Vendor Credits.

• "Unlink" Advance from Bill without Deleting the Payment Record

  I am writing to highlight a significant workflow issue in Zoho Books (India Edition) regarding Vendor Advances and Bills. The Scenario: I recorded an Advance Payment to a vendor. I matched/reconciled this payment in the Banking module. I received a Bill

• Advance Payment Record Removed When Deleting Applied Credit from Bill

  Hello, So while working with vendor advance payments, I noticed that removing the applied credit from a bill also removes the corresponding entry from the Payments Made section. What I did : Recorded an advance payment to a vendor through Payments Made.

• What is the best way to convert MSG file to Word format?

  The best way to convert MSG files to Word format is by using a reliable and professional tool Aryson MSG file Converter. Manual methods are often time-consuming and may not preserve email formatting, attachments, or metadata accurately. In contrast, Aryson

• Address Typeahead Extension for Zoho Books

  I installed the Address Typeahead extension for zoho books but when I went to configure it, it said that that version was deprecated. Is there a newer version somewhere?

• Zoho Projects : Task should auto-update to 'In Progress' if timer started

  Namaskaram. Right now, if a Task's timer is started, the Task stays in 'Not Started' status. One has to manually update it to 'In Progress'. From a #uxdesign standpoint, it is an unnecessarily two step process to start working on a task. It would be better that, if I start the timer on a task, it should automatically change to 'In Progress' status. Crafted with ❤️ Zoho Gurus | Zoho One Practice Team @ CubeYogi Zoho Authorised Partner | 7+ Yrs | 200+ Projects | 100+ Customers

• Invoice template with sales tax totals

  Hi everyone,  I am trying to edit my invoice template so that only the total sales tax collected for my tax group shows up. Right now, under by sub total, each individual tax shows up and that takes up a lot of unnessary space, so I just want the one

• Zoho Delayed Posting & Loss of Article Thumbnails on BlueSky

  Hello! I am wondering if anyone else has had the either of the following issues when posting to socials via Zoho and if there is a fix? 1. Post says it is scheduled or it is live when sent off via Zoho but it doesn't show up on socials till some time

• Connection Not Secure (Certificate Mismatch) Error

  Hi, Just a fyi, when you go to https://bigin.zohocloud.ca/bigin/Home you get a "Your Connection Is Not private" error. (Certificate mismatch to domain.) I get to that page after I have signed up and signed in as a customer and select the Access Bigin

• Recording the Investment

  Hello, - One Investor Invested to our company, So how do we record investment which we received in our bank in the Zoho books ? - How do we record if we provide shares to the investor in the Zoho books? Thanks

• Export Invoices to XML file

  Namaste! ZOHO suite of Apps is awesome and we as Partner, would like to use and implement the app´s from the Financial suite like ZOHO Invoice, but, in Portugal, we can only use certified Invoice Software and for this reason, we need to develop/customize on top of ZOHO Invoice to create an XML file with specific information and after this, go to the government and certified the software. As soon as we have for example, ZOHO CRM integrated with ZOHO Invoice up and running, our business opportunities

• Client and Vendor portal at the same time

  We have companies that serve both as clients and vendors and they are linked. However, we have a problem giving them access to the vendor/client portal. If they accept the invitation from the client portal, when we try to invite them to the vendor portal

• Integrate Multiple ZohoBooks organization with zoho projects

  We have successfully connected our Zoho Books with Zoho Projects for synronizing timesheet data. Our Business specialty is, that the staff of the Main company (A) is working on several projects, but the Clients are sometimes contracted and paying to a

• Ways to calculate the difference form two years or months

  Hi to everyone I have this request: I need to show the difference or variation from two periods (years or months) whether using a Pivot View or a graph, in this is case is better in a Pivot view. In the pivot view I will have the amount or results from

• Career site URL - Suggestion to modify URL of non-english job posting

  Hi, I would like to suggest making a few modification to career sites that are not in english. Currently, the URL are a mix of different languages and are very long. It makes for very unprofessional looking URLs... Here is an example of one of our URL

• Cliq iOS can't see shared screen

  Hello, I had this morning a video call with a colleague. She is using Cliq Desktop MacOS and wanted to share her screen with me. I'm on iPad. I noticed, while she shared her screen, I could only see her video, but not the shared screen... Does Cliq iOS is able to display shared screen, or is it somewhere else to be found ? Regards

• Introducing Contract Settings & Backdated Contracts in Zoho Contracts

  We are rolling out updates that give you more control over how contracts are created and managed in Zoho Contracts. From defining default workflows with Contract Settings to aligning agreements with real timelines using Backdated Contracts, these enhancements

• Celebrating our customers on International Client's Day

  Hi everyone, Every customer is part of our Zoho Desk family, and we wouldn’t want to miss celebrating you on this special day. This International Client's Day, we’d like to take a moment to appreciate every customer who has helped us grow and build meaningful

• Zoho Books | Product updates | February 2026

  Hello users, We’ve rolled out new features and enhancements in Zoho Books. From Advanced Reporting Tags to the ability to mark projects as completed, explore the latest updates designed to improve your bookkeeping experience. Introducing Advanced Reporting

• Faster Ticket Response with use of Snippets in comments

  Hello everyone, Responding to tickets often involves repeating the same messages, whether it is sharing updates with customers or leaving notes for internal collaboration. To make this easier and more consistent, we are allowing agents to use snippets

• Improving Zoho Creator's email deliverability

  Hi all, We're pleased to announce updates to email handling in Zoho Creator to improve the deliverability of the emails sent from the Creator platform. These updates have been designed keeping in mind the fact that emails from domains with strong sender

• What's New in Zoho Billing | February 2026

  February brings a powerful set of updates to Zoho Billing, from smarter subscription management and flexible payment options to better reporting and more control over your hosted pages. Here's everything that's new this February. Create Subscriptions

• Next Page