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

      Zoho Campaigns Resources


        • Desk Community Learning Series


        • Digest


        • Functions


        • Meetups


        • Kbase


        • Resources


        • Glossary


        • Desk Marketplace


        • MVP Corner


        • Word of the Day


        • Ask the Experts


          • 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

          Zoho CRM Plus Resources

            Zoho Books Resources


              Zoho Subscriptions Resources

                Zoho Projects Resources


                  Zoho Sprints Resources


                    Zoho Orchestly Resources


                      Zoho Creator Resources


                        Zoho WorkDrive Resources



                          Zoho CRM Resources

                          • CRM Community Learning Series

                            CRM Community Learning Series


                          • Tips

                            Tips

                          • Functions

                            Functions

                          • Meetups

                            Meetups

                          • Kbase

                            Kbase

                          • Resources

                            Resources

                          • Digest

                            Digest

                          • CRM Marketplace

                            CRM Marketplace

                          • MVP Corner

                            MVP Corner




                            Zoho Writer Writer

                            Get Started. Write Away!

                            Writer is a powerful online word processor, designed for collaborative work.

                              Zoho CRM コンテンツ




                                ご検討中の方

                                  • Recent Topics

                                  • Update P_Leave: code: 7052 "Employee_ID": "Enter Employee ID"

                                    Hi, Zoho People - Update Leaves Can someone assist? ------------------------------------------------------------------------------------------ col = Collection(); col.insert("recordid":id); col.insert("Date_Check_Approval":zoho.currentdate); info zoho.people.update("P_Leave",col.toMap());
                                  • Prevent tracking users from specific countries

                                    Currently, I’m receiving many bot visits from the United States and Malaysia. I would like these visits not to be recorded in SalesIQ. I already enabled the option to exclude traffic from cloud service providers, but I’m still receiving bot visits. Ideally,
                                  • Print a document from Zoho Writer via Zoho Creator

                                    If i use the code below i can get writer to create a new document or email it to me but i want to be able to print it directly from the browser and not have to send it via email and then print. Below is the code im using. Attached options form zoho writer
                                  • Es posible cambiar el lenguaje de los modulos del ASAP?

                                    Es posible cambiar el lenguaje de estos textos? Tengo Zoho configurado en español pero aun así me muestra estos textos en ingles:
                                  • System Components menu not available for Tablet to select language

                                    I have attached a screenshot of my desktop, mobile, and tablet menu builder options. I am using 2 languages in my application. Language Selection is an option under the System Components part of the menu, but only for my desktop and phone(mobile). My
                                  • Using workflows to automatically set classification of new tickets

                                    Hello, I am trying to use a workflow to set a classification for a new ticket that is created via an email coming into my desk department. The workflow is working fine if I create a ticket from within desk, however if a ticket is emailed in then this
                                  • Text/SMS With Zoho Desk

                                    Hi Guys- Considering using SMS to get faster responses from customers that we are helping.  Have a bunch of questions; 1) Which provider is better ClickaTell or Screen Magic.  Screen Magic seems easier to setup, but appears to be 2x as expensive for United States.  I cannot find the sender id for Clickatell to even complete the configuration. 2) Can customer's reply to text messages?  If so are responses linked back to the zoho ticket?  If not, how are you handling this, a simple "DO NOT REPLY" as
                                  • Default/Private Departments in Zoho Desk

                                    1) How does one configure a department to be private? 2) Also, how does one change the default department? 1) On the list of my company's Zoho Departments, I see that we have a default department, but I am unable to choose which department should be default. 2) From the Zoho documentation I see that in order to create a private department, one should uncheck "Display in customer portal" on the Add Department screen. However, is there a way to change this setting after the department has been created?
                                  • Show unsubscribed contacts ?

                                    Hello, I would like to display the unsubscribed contacts. Unfortunately, I do not have this subscription type as described in the documentation (https://help.zoho.com/portal/en/kb/marketing-automation-2-0/user-guide/contacts/contact-management/articles/subscription-type-24-1-2024#Subscription_Type_field.)
                                  • Can Zoho Marketing Automation send OTP codes via WhatsApp during user registration?

                                    The flow I would like to implement is: A user signs up in the mobile app and enters their phone number. The system generates a one-time verification code (OTP). The OTP is sent to the user via WhatsApp message. The user enters the code in the app to confirm
                                  • What's New in Zoho Inventory | Q2 2025

                                    Hello Customers, The second quarter have been exciting months for Zoho Inventory! We’ve introduced impactful new features and enhancements to help you manage inventory operations with even greater precision and control. While we have many more exciting
                                  • "Spreadsheet Mode" for Fast Bulk Edits

                                    One of the challenges with using Zoho Inventory is when bulk edits need to be done via the UI, and each value that needs to be changed is different. A very common use case here is price changes. Often, a price increase will need to be implemented, and
                                  • Cloning Item With Images Or The Option With Images

                                    Hello, when I clone an item, I expect the images to carry over to the cloned item, however this is not the case in Inventory. Please make it possible for the images to get cloned or at least can we get a pop up asking if we want to clone the images as
                                  • ZOHO BOOKS - RECEIVING MORE ITEMS THAN ORDERED

                                    Hello, When trying to enter a vendor's bill that contains items with bigger quantity than ordered in the PO (it happens quite often) - The system would not let us save the bill and show this error: "Quantity recorded cannot be more than quantity ordered." 
                                  • Stock count by bin location

                                    Is there a configuration to make a stock count by bin or area and not by product. these is useful to manage count by area Regards
                                  • Server-based Appication API access for Social, Sites, Flow, Pages.

                                    Hello, I am trying to hook up API access for a number of apps and I have hit a wall trying to add these scopes to the API feed. We cannot find the correct way to list the scope for these Zoho apps; Social, Sites, Flow, Writer. Error on web-page comes
                                  • Feature Request: "Send Invitation" Toggle for Events

                                    I am writing to request a critical "Quality of Life" update for the Activities module. Currently, adding people to the Participants field in an Event triggers an automatic email invitation/acceptance tracking with no way to opt-out. For general events
                                  • Zoho Survey: Bulk Exporting Raw Data (CSV/Excel) from 100+ Individual Survey Projects

                                    Hi Zoho Community, I am currently managing a 360-degree evaluation process that involves 100+ individual survey projects (one separate survey for each employee being evaluated). I need to download the raw response data (CSV or Excel) for all 100 surveys.
                                  • Zoho Survey – Page Skip Logic Not Working

                                    Hi everyone, I'm experiencing an issue with the page skip logic in Zoho Survey. Last week, it was working fine, and I haven’t changed anything in the settings. However, today the skip logic is not working at all. I also tried testing it with different
                                  • CRM x WorkDrive: File storage for new CRM signups is now powered by WorkDrive

                                    Availability Editions: All DCs: All Release plan: Released for new signups in all DCs. It will be enabled for existing users in a phased manner in the upcoming months. Help documentation: Documents in Zoho CRM Manage folders in Documents tab Manage files
                                  • Anyone worked out how to export or screengrab a full heatmap?

                                    I'd love to be able to include a copy of a heatmap in a report but can't work out how to grab the whole thing as there doesn't appear to be an export function? Thanks in advance.
                                  • Introducing Built-in Telephony in Zoho Recruit

                                    We’re excited to introduce Built-in Telephony in Zoho Recruit, designed to make recruiter–candidate communication faster, simpler, and fully traceable. These capabilities help you reduce app switching, handle inbound calls efficiently, and keep every
                                  • Sender Email Configuration Error.

                                    Hello Team, Hope you are all doing well. We are in the process of creating the Zoho FSM environment in the UAE. When we try to add the sender email address “techsupportuae@stryker.com”, we receive the error message: “Error occurred while sending mail
                                  • Auto-publish job openings on my Zoho Recruit Careers Website

                                    I have developed a script using the Zoho Recruit API that successfully inserts new jobOpening records to my Zoho Recruit website, but my goal is to auto-publish to the Careers Website. The jobOpening field data shows two possible candidates to make this
                                  • [Free webinar] Custom domains for portals in Zoho Creator - Creator Tech Connect

                                    Hello everyone, We’re excited to invite you to another edition of the Creator Tech Connect webinar. About Creator Tech Connect The Creator Tech Connect series is a free monthly webinar featuring in-depth technical sessions designed for developers, administrators,
                                  • Remove my video

                                    Hi, How can I remove my video so that I don't have to see myself. It's weird so I always remove my own video from what I see but cannot find this feature here. Thanks!
                                  • Marking a meeting 'done'.

                                    I would like to somehow mark a meeting 'done' and placed under the contact's page rather than deleting it and having no record of it. Am I missing a button that does this?
                                  • Add Lookup Field in Tasks Module

                                    Hello, I have a need to add a Lookup field in addition to the ones that are already there in the Tasks module. I've seen this thread and so understand that the reason lookup fields may not be part of it is that there are already links to the tables (
                                  • 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
                                  • Cannot find zpuid for Zoho Projects user

                                    I'm using the Zoho Projects v3 API to create a task. The task is created successfully, but in order to assign the task owner, the "Create a Task" API also requires the zpuid of the task owner. Unfortunately I cannot find any user-related API calls that
                                  • Allocating inventory to specific SO's

                                    Is there a way that allocate inventory to a specific sales order? For example, let's say we have 90 items in stock. Customer 1 orders 100 items. This allocates all 90 items to their order, and they have a back order for the remaining 10 items which could
                                  • Incorrect Functioning of Time Logs API (Version 3)

                                    We need to fetch the list of time logs for each task for our company internal usage. We are trying to achieve it by using the next endpoint: https://projects.zoho.com/api-docs#bulk-time-logs#get-all-project-time-logs Firstly, in the documentation the
                                  • Partial payments for retainer invoices

                                    When a customer does not pay the entire retainer invoice there is no way to apply a partial payment. PLEASE add this function.
                                  • Can I export to PDF in Zoho Learn

                                    I have seen help pages where export to pdf options are available but I do not see that option available from the application. I see that exprt is available in my free trial version but that is only to html pages. I need to be able to export my manuals
                                  • Service line items

                                    Hello Latha, Could you please let me know the maximum number of service line items that can be added to a single work order? Thanks, Chethiya.
                                  • Sending emails via Books

                                    Anyone else getting similar problems recently ??..... Hi, Your message to the following recipient was not delivered. Please find the details below.  Bounce Details: Bounced Address : someone@google.com Bounce Reason : other ; Status : 5.0.0 (undefined status) ; Daignostic-Code : smtp;542 someone@google.com Rejected ; Bounced Time : Sep 05, 2017 06:37 PM BST Regards, Zoho Team The email addresses were fine only a few days ago but are now being rejected ?
                                  • PDF Generator Upgrade

                                    Hi Team, What will happen if I don't make any changes for existing template. Zoho just ask us upgrade but haven't tell the benefit. Zoho Corporation
                                  • No Need To Fix Something That Is Working

                                    Zoho Books is a great financial tool which helps businesses to become more efficient and productive with day-to-day operations. As such, every change, upgrade, improvement needs to be carefully thought before implemented in the software and I'm sure Zoho
                                  • Total Cost in reports showing zero

                                    The image below shows my issue. The column Total Cost should show the cost to our company based on hours logged and the employee's rate. For instance, if the person working on Subtask 1 is paid 20/hr, then Total Cost should display $160 ($20x8 logged
                                  • Zoho Books (and other finance suite apps) - Retrospective Linking of Invoice and Sales Orders to Quotes.

                                    In some cases, Quotes and Invoies may be created sperately instead of using the convert feature. In this feature request I am asking for the Finance Suite team to consider adding a lookup field to reference the quote on Invoices and Sales Orders, or some
                                  • Next Page