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

    • Recent Topics

    • 商談の特定ステージ選択時に、集計項目の入力を必須化したい

      こんにちは。Zoho CRMの商談管理で以下を実現したいです。レイアウトルールでは、集計項目を条件に選択できず実現できておりません。よい方法があればご教示いただけると嬉しいです。 ■やりたいこと 商談で特定のステージに変更する場合に、特定の集計項目（同じ商談データ内の項目。以降、集計項目Aとする）を入力必須化したい。 ■概要、状況 ・集計項目Aは、別のオブジェクトで、商談に関連する月ごとの売上を集計している数値項目 ・見積を顧客に提示した際に、集計項目Aに見積金額と一致するようにデータ登録する運用をしている

    • Setting default From address when replying to request

      At the moment, if I want to reply to a request, the From field has three options, company@zohosupport.com, support@company.zohosupport.com, and support@company.com.  The first two are really internal address that should never be seen by the customer and

    • Allow Multiple Scheduled Appointments with Zoho Support

      Dear Zoho Team, I hope you're doing well. First, thank you for introducing the option to schedule support calls via the Zoho CRM booking link. This has been a fantastic enhancement, eliminating the need for back-and-forth coordination when scheduling

    • Share Edit while in Workflow

      There are times that while a writer document is in the middle of a workflow the user that's responsible for that stage of the workflow needs to bring in other people to work on the document. Currently there is no way for the user to be able to allow other's

    • How to add a custom hyperlinked button in ZohoCRM Canvas Builder?

      I am building custom views in ZohoCRM Canvas builder, with one view that will be used for a client Portal. Trying to add a custom button that when clicked opens a separate window to a ZohoForm. How do I do this?

    • Event Time Zone in meeting invites are confusing users

      When sending calendar invites to internal and external users, the first section "Event Time Zone" is confusing people and they are automatically declining events. Can this section please be removed??? It already shows the correct time zone next to the

    • How do you create an event/meeting in a different time zone?

      Does anyone know how do you create an event/meeting in a different time zone? 

    • Extend GitHub Commit Integration to Tasks in Zoho Projects

      Hello Zoho Projects Team, We hope you are doing well. We would like to submit a feature request regarding the current GitHub integration in Zoho Projects, specifically the ability to link commit information. Current Limitation: As of now, Zoho Projects

    • Add Native GitHub Pull Request Creation & Management from Tasks/Bugs

      Hi Zoho Projects Team, I am submitting a feature request to enhance our development lifecycle by enabling native GitHub Pull Request (PR) creation and management directly within Zoho Projects. The Current Limitation: Currently, the GitHub integration

    • Add Actionable “Smart Commits” for GitHub Integration

      Hi Zoho Projects Team, I am submitting a feature request to introduce Smart Commits support for the GitHub integration in Zoho Projects. The Current Limitation: Currently, Zoho Projects offers a "passive" integration. Including a Task ID in a commit message

    • Add Unified Project-Wide Development & Release GitHub Dashboard

      Hi Zoho Projects Team, I am writing to submit a feature request for a Unified Development & Release GitHub Dashboard that provides centralized GitHub visibility at both the Project and Milestone levels. The Vision: We need a single "Command Center" that

    • Add Native “Create GitHub Branch” Action for Tasks and Bugs

      Hi Zoho Projects Team, I would like to submit a feature request to enhance the GitHub integration in Zoho Projects by adding the ability to initiate a GitHub branch directly from a Task or Bug. The Current Limitation: Currently, Zoho Projects lacks a

    • One-click “Open in VS Code” from Zoho Tasks/Bugs with automatic branch checkout

      Hi Zoho Projects Team, I am submitting a feature request to enhance the development workflow within Zoho Projects, specifically the ability to open a Task or Bug directly in VS Code and automatically check out the related branch, similar to capabilities

    • How to reduce inventory valuation when not tracking individual items?

      We purchase clothing items wholesale, embroider them with a company's logo, then resell. The garment style, size, color, etc. changes according to a customer's desire, so we don't track the individual item's purchase within Zoho Inventory unless there's

    • Merge tag didn't work in the campaign sent to test email list

      Hello, I just sent out a campaign to my list of test emails (including my personal one). The merge tag that's supposed to put a first name of the contact $[UD:FIRST_NAME||]$ didn't work. Where the first name of the contact should be displayed there's

    • Add Camera Background Blur During Recording

      Hi Zoho WorkDrive Team, Hope everything is well. We would like to request an enhancement to the video recording feature in Zoho WorkDrive. Currently, the camera preview displayed during a recording does not support background blur. This is an essential

    • Sync Data from MA to CRM

      Currently, it's a one-way sync of data from the CRM to MA. I believe we should have the ability to select fields to sync from MA to the CRM. The lead score is a perfect example of this. In an ideal world we would be able to impact the lead score of a

    • How can I transfer data from Production to Development environment?

      Hi, I am using Creator V6 and would like to bring all the data in production to the Development and Testing environments? Is there an easy way of doing that or I have to export and import each table?

    • filter on sheets mobile (iOS, iPadOS) does not work

      re-posting this as a question because reporting as a problem netted zero responses... I have this issue on every spreadsheet, whether imported or created natively in Zoho Sheets. I can use on desktop without issue: but on iOS the filter dropdowns are

    • How to map fields from Zoho Recruit to Zoho People

      I've got these fields from my Job Offer that I'm trying to map to the Work information fields in Zoho People, but they arent showing up. For example, how do I get the department name field (in the job post) to map to the work information field in Zoho

    • Mass email from Report output

      Hi, I'd like to send a mass email based on a report output. The report is pulling multiple information from linked modules. Each line of the report ends up with a contact name, email and multiple field values pulled from the linked modules (some are custom

    • Introducing SlyteUI : From Idea to a Working Interface in Minutes

      Hello everyone! Are you spending hours building basic UIs? Does even the smallest customization feel like a major task? CRM customization should feel intuitive and straightforward, not time consuming or exhausting. SlyteUI makes this possible by simplifying

    • Add Comprehensive Accessibility Features to Zoho Writer

      Hello Zoho Writer Team, We hope you are doing well. We would like to submit a feature request to enhance Zoho Writer with a full set of accessibility tools, similar to the accessibility options already available in the Zoho Desk agent interface. 🚧 Current

    • How to see Tickets that require a response

      When an agent checks his work he should be able to see a list of tickets that he has to reply to. Currently he can only see if the ticket is closed or open. However the ticket might be open but we are waiting for the customers reply, so there is nothing

    • Zoho Books' 2025 Wrapped

      Before we turn the page to a new year, it’s time to revisit the updates that made financial management simpler and more intuitive. This annual roundup brings together the most impactful features and enhancements we delivered in 2025, offering a clear

    • [Free webinar] Integrations 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,

    • Issue with attaching files to a task through the API

      Hello! I've implemented a function that creates a task for every new bill that is created but I haven't been able to attach to the task the files which are attached to the bill. I have encountered multiple errors but the most common one is error 33003:

    • Trigger workflows from SLA escalations in Zoho Desk?

      Hey everyone, I’m currently working with SLA escalation rules in Zoho Desk and ran into a limitation that I’m hoping someone here has solved more elegantly. As far as I can tell, SLA escalations only support fairly limited actions (like changing the ticket

    • Can I hide empty Contact fields from view?

      Some contacts have a lot of empty fields, others are mostly filled. Is there a way I can hide/show empty fields without changing the actual Layout? I would like to de-clutter my view, and also be able to add information later as I am able. I would be

    • Agents permission per department

      Hi Team, can I setup permission for each agent what they can do in each department, for example I want account department agents to only have view access to support department tickets and not allowed to assign or reply to clients. I am sure this would

    • Ask the Experts - Live Q&A webinar

      Hello Community, We’re excited to host our very first Ask the Experts session! Join us on 7 April 2026 from 11 a.m. to 12 p.m. (IST) for this live webinar Q&A session, where you will have an opportunity to connect directly with our product experts, gain

    • 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

    • Prevent Automatic Milestone Inheritance for Newly Created Task Lists

      Hello Zoho Projects Team, We hope you are doing well. We would like to request an enhancement regarding how new task lists inherit Milestone association in Zoho Projects. Current Behavior: At the moment, when a new task list is created below an existing

    • Hiding / removing Currency field from Layout

      Hello, I'm working on the LEAD standard layout of Zoho CRM. I like to have it as minimal as possible for our team. I could remove most of the field, but Currency is not possible. As lead, I don't quite understansd the necessity to have Currency as mandatory.

    • Updating Sales orders on hold

      Surely updating irrelevant fields such as shipping date should be allowed when sales orders are awaiting back orders? Maybe the PO is going to be late arriving so we have to change the shipment date of the Sales order ! Not even allowed through the api - {"code":36014,"message":"Sales orders that have been shipped or on hold cannot be updated."}

    • Can we have Backorder Management ?

      Can we have Backorder Management ?

    • Accept credit card payment for multiple invoices

      We have a problem with Zoho Books.  While we can charge a customer's credit card for an individual customer invoice, we cannot charge a customer's credit card for more than one invoice. In our business, it is common for a client to phone up and say, "Here

    • Anyone in Australia using Zoho Books AND has their account with NAB?

      Hi I have an account with both NAB and Suncorp. Suncorp transaction come in the next day however NAB transactions take 4-5 business days to appear. eg: A deposit made today in my Suncorp will be imported into Zoho tomorrow. A deposit made today to the NAB account will be imported maybe Saturday (Friday overnight). I have contacted both Zoho and NAB but noone seems to know why. I was just wondering if anyone else in Australia uses NAB and has this issue (or doesn't) maybe we could compare notes and

    • Newby Questions - Vendors, Customers, and Income vs. Other Income Clarifications

      Q1. For Deposits, there does not seem to be an option for "Income". "Other Income" is an option however. What is the process to add the option to assign a deposit to type "Income"? Q2. In many cases Vendors and Customer are the same. Vendors may purchase

    • ISO 3166-2 Compliant Country and Regions

      Zoho should consider implementing ISO 3166-2 standards for countries and regions in address dropdowns. It adds a lot of noise in the data when items added programmatically conform to ISO 3166-2 (e.g., TX for Texas, CA for Canada, etc.), but the few items

    • Next Page