Kaizen #8 - Handling Recurrence and Participants in the Events Module via API

Kaizen #8 - Handling Recurrence and Participants in the Events Module via API

Hello everyone!

We are back this week with an exciting post—Handling recurrence and participants in the Events module through API.

First things first—What is the Events module?
"Events" is a part of the Activities module in Zoho CRM. 
An event is an activity that happens at a given place and time. You can find Events on the user's Zoho CRM's home page, Activities home page, Calendar, and in other related records.

What are the types of Events?
Events are of two types—Recurring and non-recurring events.
Recurring events: These events repeat/recur at a set frequency. You can set them to repeat by day, week, month, or by year. You can also set them to repeat a fixed number of times. 
Non-recurring events: These are one-time events.
Both these events can also be all-day events.

Now, let us see how to handle a recurring event and add/update participants via API.

1. Creating a Recurring Event through API
You must use the Insert Records API to insert a record in the Events module.

Request URL: {{api-domain}}/crm/v2/Events
Request method: POST

Sample input to create a recurring event that repeats every two weeks

{
    "data": [
        {
            "All_Day": false,
            "Event_Title": "Kaizen_9_Weekly",
            "Start_DateTime": "2020-02-02T10:00:00+05:30",
            "End_DateTime": "2020-02-02T11:00:00+05:30",
            "Participants": [
                {
                    "type": "contact",
                    "participant": "3652397000001281003"
                },
                {
                    "type": "lead",
                    "participant": "3652397000000415063"
                },
                {
                    "type": "user",
                    "participant": "3652397000000186017"
                }
            ],
            "Recurring_Activity": {
                "RRULE": "FREQ=WEEKLY;BYDAY=SU;INTERVAL=2;UNTIL=2020-03-15"
            },
            "Remind_At": "2020-02-01T09:45:00+05:30",
            "Who_Id": {
                "id": "3652397000000649013",
                "name": "Patricia Boyle"
            },
            "Venue": "Chennai",
            "$se_module": "Accounts",
            "What_Id": "3652397000000624046",
            "$send_notification": true
        }
    ]
}


Mandatory keys
The following table lists the mandatory fields you must specify while creating a recurring event. Not including any one of these fields results in the MANDATORY_NOT_FOUND error.

Key
Data Type
Description
Event_Title
String
Title of the event. Accepts a maximum of 255 characters, alphanumeric, and special characters. 
Start_DateTime
DateTime
The date and time (in ISO8601 format) at which the event begins. 
End_DateTime
DateTime
The date and time (in ISO8601 format) at which the event ends. 
Recurring_Activity
JSON Object
JSON Object that contains information about the recurrence pattern of the event in the key "RRULE".

Other Keys

Key
Data Type
Description
All_day
Boolean
Represents if the event takes place all day.
Participants
JSON Array
Contains the ID and type of each participant in individual JSON objects. Possible participant types are "lead", "contact", "user", and "email".
Remind_At
DateTime
The date and time in the current user's time zone (in ISO8601 format) at which a reminder is sent to the participants. 
Who_Id
JSON Object
The name and ID of the contact that the event is related to; that contact may or may not be a participant of the event.
What_Id
JSON Object
The name and ID of the Account, Deal, Product, Quote, Invoice, Campaign, Vendor, Case, Purchase Order, or Sales Order that the event is created for.
$se_module
String
The API name of the parent module given in the key "What_Id". This key is mandatory when you include the "What_Id".
Venue
String
The place where the event takes place. Accepts a maximum of 255 characters, alphanumeric, and special characters.
$send_notification
Boolean
Represents if you want to send invitations to the participants of the event. The value true sends out invitations, and false does not. 

We will now discuss the Participants and RRULE keys in detail.

1.1 Participants
The Participants key is a JSON array of participant JSON objects. You can add four types of participants to an event—lead, contact, user, and email. 
You must include each of these participant types as individual JSON objects inside this array as shown below.

"Participants": [
        {
            "type": "contact",
            "participant": "3652397000001281003"
        },
        {
            "type": "lead",
            "participant": "3652397000000415063"
        },
        {
            "type": "user",
            "participant": "3652397000000186017"
        },
        {
            "type": "email",
            "participant": "carissa-kidman@yahoo.com"
        }
]

Where, 
type - The type of participant. The possible values are lead, contact, user, email
participant -  The record ID of the lead, contact, or user.

1.2 RRULE
RRULE is the key in the Recurring_Activity JSON object that determines the recurrence pattern of the event. 
RRULE holds multiple key-value pairs for different types of recurring events (i.e Daily, Weekly, Monthly, Yearly). You must separate each key-value pair by a semicolon.

Mandatory key-value pairs for RRULE
Key
Possible Values
Description
FREQ
DAILY, WEEKLY, MONTHLY, YEARLY
Frequency; represents how often the event repeats. 
INTERVAL
1–99
The gap between each event. For example, for a weekly recurring event, if the INTERVAL value is 2, the gap between the first and the next event will be two weeks. 
COUNT
1–99
The number of events you want to create. For example, if the COUNT value is 3, three events will be created. 

Note
You must specify FREQ and (INTERVAL or COUNT) in RRULE.

Other key-value pairs in RRULE
Key
Possible Values
Description
BYMONTHDAY
1–31
The day of the month the event repeats on. Applicable only for  monthly and yearly events.
BYDAY
SU, MO, TU, WE, TH, FR, SA
The day of the week the event repeats on. Applicable for daily, weekly, monthly, and yearly events.
BYSETPOS
1, 2, 3, 4, -1 
The week of the month the event repeats in.
Applicable only for monthly and yearly events.
1 - Event repeats every first week of the month
2 - Event repeats every second week of the month
3 - Event repeats every third week of the month
4 - Event repeats every fourth week of the month
-1 - Event repeats every last week of the month.
UNTIL
Date in yyyy-MM-dd format
The date until which the event must repeat.

Therefore, according to the sample input given at the beginning of the post, the event starts on Feb 2, 2020 at 10:00 AM and ends the same day at 11:00 AM.

According to  "RRULE":"FREQ=WEEKLY;BYDAY=SU;INTERVAL=2;UNTIL=2020-03-15", the event occurs every Sunday, with an interval of 14 days (2 weeks), and recurs until Mar 15, 2020.
Therefore, the sequence is as shown below.
  1. The event begins on Feb 2, 2020.
  2. The first recurring event happens on Feb 16, 2020.
  3. The second recurring event happens on Mar 1, 2020.
  4. The last recurring event happens on Mar 15, 2020.
Therefore, the response will have four JSON objects—one for the first event as specified in the Start_DateTime key, and one for each recurring event.

Note
You can only create one set of recurring events using the RRULE in a single API call.

A few other examples of RRULE:
  • "RRULE": "FREQ=MONTHLY;COUNT=3;BYDAY=WE;BYSETPOS=2".
    This RRULE creates three events that recur every Wednesday in the second week of the month.
  • "RRULE": "FREQ=MONTHLY;INTERVAL=2;COUNT=3;BYMONTHDAY=14".
    This RRULE creates three events that recur on the 14th day of the month, and repeat once in two months.

2. Updating an Event
You must use the Update Specific Record API to update an event.
In this section, we will discuss
  1. Adding a participant to an event
  2. Updating all future events
2.1 . Adding a participant to an event
Details you need to add a participant to an event
  1. The event's record ID. You can obtain this from the response you received while creating the event.
  2. The ID of the participants that are added already. The GET Specific Event response will have a unique ID for each participant in the "Participants" JSON array.
The sample input is as follows.

{
    "data": [
        {
            "All_Day": false,
            "Event_Title": "Kaizen_10_Weekly",
            "Start_DateTime": "2020-02-02T11:00:00+05:30",
            "End_DateTime": "2020-02-02T12:00:00+05:30",
            "Participants": [
                {
                    "type": "contact",
                    "participant": "3652397000001281003",
                    "id": "3652397000001326102"
                },
                {
                    "type": "lead",
                    "participant": "3652397000000415063",
                    "id": "3652397000001326100"
                },
                {
                    "type": "user",
                    "participant": "3652397000000186017",
                    "id": "3652397000001326098"
                },
                {
                    "type": "email",
                    "participant": "john-butt@gmail.com"
                }
            ],
            "Remind_At": "2020-02-01T10:45:00+05:30",
            "$send_notification": true
        }
    ]
}
As you can see, a new participant of type email and email ID john-butt@gmail.com is added. Since the ID of the existing participant with the email ID carissa-batman@yahoo.com is not specified, it gets deleted.

Note
  • participant is the record ID of the participant (lead, contact, or user).
  • ID is the unique ID of the participant for that event.
  • While adding a participant, you must specify the IDs of other participants for the event. Otherwise, only the new participant is added, while the rest are deleted.

2.1 . Updating all future events
While updating an event, you can choose to update all future events with the new change.
Use the boolean key update_all_future_events. The value true updates all future events, and the value false updates only that particular event.
Here is a sample input.

{
    "data": [
        {
            "All_Day": false,
            "Event_Title": "Kaizen_10_Weekly",
            "Start_DateTime": "2020-02-02T11:00:00+05:30",
            "End_DateTime": "2020-02-02T12:00:00+05:30",
            "Participants": [
                {
                    "type": "contact",
                    "participant": "3652397000001281003",
                    "id": "3652397000001326102"
                },
                {
                    "type": "lead",
                    "participant": "3652397000000415063",
                    "id": "3652397000001326100"
                },
                {
                    "type": "user",
                    "participant": "3652397000000186017",
                    "id": "3652397000001326098"
                },
                {
                    "type": "email",
                    "participant": "carissa-kidman@yahoo.com"
                }
            ],
            "Remind_At": "2020-02-01T10:45:00+05:30",
            "update_all_future_events": true,
            "$send_notification": true
        }
    ]
}

Points to Note
While creating recurring events,
  • You must specify either COUNT or INTERVAL in the RRULE. Otherwise, the system creates 365-day events.
  • For WEEKLY recurring events, you must include BYDAY in RRULE. Otherwise, the system creates 365-day events that recurs weekly.

While updating a recurring event,
  • You must specify the record ID of the event you want to update. 
  • You must set the value of the key update_all_future_events to true to update all future events. Otherwise, the system updates only that event and the other recurring events that you created previously will remain unaltered.
  • While adding a participant, you must specify the IDs of other participants. Otherwise, only the new participant is added, while the rest are deleted.
  • You cannot update RRULE through the API.
  • You cannot update check-in related information through the API.

We hope you found this post useful. Please reach out to us if you have questions, or let us know in the comment section.
Cheers!
















    • Sticky Posts

    • 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
    • Kaizen #152 - Client Script Support for the new Canvas Record Forms

      Hello everyone! Have you ever wanted to trigger actions on click of a canvas button, icon, or text mandatory forms in Create/Edit and Clone Pages? Have you ever wanted to control how elements behave on the new Canvas Record Forms? This can be achieved
    • Kaizen #142: How to Navigate to Another Page in Zoho CRM using Client Script

      Hello everyone! Welcome back to another exciting Kaizen post. In this post, let us see how you can you navigate to different Pages using Client Script. In this Kaizen post, Need to Navigate to different Pages Client Script ZDKs related to navigation A.
    • Kaizen #210 - Answering your Questions | Event Management System using ZDK CLI

      Hello Everyone, Welcome back to yet another post in the Kaizen Series! As you already may know, for the Kaizen #200 milestone, we asked for your feedback and many of you suggested topics for us to discuss. We have been writing on these topics over the

    Nederlandse Hulpbronnen


      • Recent Topics

      • Do Unpublished Products in Shopify Sync to Zoho POS?

        Will an unpublished product in Shopify sync to Zoho POS? I would like to know how Zoho POS handles products that are in draft/unpublished status in Shopify.
      • Hide Contact Number for Field Users & Agents

        Is it possible to hide the contact number in both the Service Appointment and Work Order modules for field users and agents? The agents are using the Zoho FSM mobile app, and we want to restrict them from viewing the contact number.
      • Zoho Voice lance BYOC (Bring Your Own Carrier) : intégrez votre opérateur

        Pour accompagner sa croissance, une entreprise a besoin d’une infrastructure téléphonique flexible et évolutive. Les solutions de téléphonie s’adaptent aux exigences du centre de contact, tout en intégrant aisément les opérateurs locaux de votre choix.
      • Introducing Query Workbench in Zoho CRM

        Hello everyone! We’re excited to announce the Query Workbench, a brand-new interface designed to improve developer experience of building Queries in Zoho CRM faster, simpler, and more intuitive. In the past, constructing queries required navigating across
      • ABN with Legal Entity Name

        Hi, How can I execute this? The ABN number is entered in Accounts Module and ideally, it should display or suggest the correct Legal Entity Name based on the ABN lookup. ex. Account Name: JPG Resources ABN Number: 65 067 761 871 Legal Entity Name: (auto
      • Saving sent email campaign as PDF

        I'm looking to add all campaigns sent to an archive folder in sharepoint. Is there anyway to accomplish this in Zoho Flow ? I'm falling at the first hurdle ... can I automatically save a sent campaign as a PDF to a folder location ?
      • Open Form in Same window as Page from embedded Report

        I have a page that has an embedded report, as shown below. When I click the + sign to add a new record, the form shows up inside the page where the report was embedded. I know that I can add a custom action to the report grid or report detail view and
      • How to update Multi File upload field

        Assume that i have a multi file upload field,how can i update the same field again?
      • Zoho DataPrep switching Date Format

        When using a pipeline that is importing Zoho Analytics data into Zoho DataPrep, the month and day of date fields are switched for some columns. For example, a Zoho Analytics record of "Nov. 8, 2025" will appear in Zoho DataPrep as "2025/08/11" in "yyyy/MM/dd"
      • Whatsapp Connection Status still "Pending" after migration

        Hello, I migrated my WhatsApp API to Zoho from another provider a day ago. So far the connection status is still “Pending”. There is a problem? How long does it usually take?
      • Limitation with Dynamic Email Attachment Capture

        I've discovered a flaw in how Zoho Creator handles email attachments when using the Email-to-Form feature, and I'm hoping the Zoho team can address this in a future update. The Issue According to the official documentation, capturing email attachments
      • Add Customer in Books on Creator Form Submit Params

        Hi guys, Were integrating a creator app with books however what were doing is adding a books customer on submit of creator form.  We have some parameters but some fields aren't coping, All were seeing is the contact name in books,.  Any help of the params for this would be great. below is a sample of the script... response = zoho.books.createRecord("contacts", "XXXXXXXXX", { "contact_name" : input.Name, "address" : input.Email }); 
      • Admin asked me for Backend Details when I wanted to verify my ZeptoMail Account

        Please provide the backend details where you will be adding the SMTP/API information of ZeptoMail Who knows what this means?
      • Suggestion : link KB with Accounts

        Hi Zoho teams.  I think it could be good to link KB articles with  : accounts in order to easily  find articles dedicated to some account specificities. I tried to use tags , but tags are free text with not easy way  to retrieve it directly from ticket or list article for one tag. Tickets : It would be a good way to measure usage of KB directly from ticket when we don't need to copy/paste KB in solution. And : Great Tool , keep going ! 
      • Drag and Drop in Creator Application

        Hi, I am in the planning phase of a new application and I would like to use 'Drag and Drop' in the user interface of my new Creator application that I am sketching out, but I don't seem to be able to find any reference that this is available to developers. In my instance I have table of entries and I would like to be able to allow users to move an entry to another table (much like you do in your own interface when creating a Pivot Table report. In addition, I would like the user to be able to re-order
      • Is there any way to integrate Zoho with Zapier?

        Is there any way to integrate Zoho with Zapier? I'd like to use it to create a workflow, sharing posts from our Wordpress website to all our channels.
      • Can we add custom fields to portal community profiles?

        How do we add custom fields to our profile pages in our portal community? If we have the ability to add custom fields, will we be able to access those fields via API? We want to use our Desk community in our help portal as our primary community and would
      • Popular Articles Report

        From data to decisions: A deep dive into ticketing system reports Content management teams can use various metrics to assess the effectiveness of knowledge base articles, improve content quality, and ensure articles are regularly updated. Predefined article
      • Invoice Ref. Field

        Hello Team, Currently, the Invoice Ref. field is set to a Number type with a maximum limit of 9 digits. However, we often receive customer invoices that contain up to 12 digits. In some cases, the invoice reference includes not only numbers but also letters
      • 60 Days Into Zoho - Tiktok Branding Startup -7 Questions?!

        Wsp Everybody I co-own a TikTok Branding / Consulting Startup & have been using Zoho for the past 60 days - Am now looking to make our overall operations & processes more Efficient & Effective! Curious to know how others are using the platform & what's
      • 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 (
      • Turning off the new UI

        Tried the new 'enhanced' UI and actively dislike it. Anyone know how to revert back?
      • XML format to import knowledgebase into Zoho Desk

        Hi, We just started to use Zoho Desk and want to import our knowledgebase from our old support system (Freshdesk) to Zoho Desk. Can anyone give us information about the format of xml file to import? There is no explanation on the related page.
      • Pushing Zoho People leave into Microsoft calendar: how to chose how "event" is shown (busy, free etc)

        Hi, how can I select how a "leave" event is pushed into Microsoft calendar? I want for leave "working elsewhere" to show as working elsewhere and NOT as busy.
      • Duplicate Accounts

        Hi There, I am looking for a solution, script, workflow or anything to solve an issue we have - in our customers section we have a rule that doesn't allow duplicates, however Zoho will allow customers with xxxxx and xxxxx PLC or LTD so effectivley we
      • Error with If formula

        I've got this super simple If formula, what is the reason for the error? If ( LEN(${Leads.Trial Slot Option}) == 3,'y','n') Syntax Error. Check the examples for any functions you're using to see if you formatted them correctly. Make sure your fields are
      • Announcing Multi-language Support in Zoho FSM

        Zoho FSM now speaks your language. The much-awaited multi-language support is now available in Zoho FSM. The following languages are supported in Zoho FSM: Dutch (Nederlands) English - United Kingdom English - United States French (français) French -
      • Creating multiple CRM leads from a Zoho Forms subform

        Hi all, We have a heavily used intake form that is used for new leads as a part of our intake. There is a subform that allows the lead to add additional team members, their titles and other basic info. That form submission creates a new Lead and the subform
      • Free webinar! Build smarter apps with Zoho Sign and Zoho Creator

        Hello, Bring the power of digital signatures to the apps you build in Zoho Creator! Connect Zoho Sign as a microservice and enable seamless e-signature workflows in your applications. This integration allows you to automate signing tasks using Deluge.
      • Restrict Addresses in Zoho Forms?

        In the address field, is there a way to restrict the addresses that auto populate (via Zoho Maps or Google Maps) to a specific state (I know it's possible with the country). Additionally, how often does the address in Zoho Maps get updated? Certain addresses
      • Appraisals on Employee Information Profile

        Is it possible to show completed appraisals on each employee's "Employee Information" page? I would presume at the bottom - similar to the "Related Lists" concept in Zoho CRM. Obviously view access would be limited to employee and appropriate other roles
      • Zoho Tracking Image location

        So we've been having an issue with tracking email opens. Specifically in Gmail. Our emails are not that long either, maybe 4 sections of image/250 characters of text/button per section.  But all my test accounts I used via Gmail we're showing opens. But then come to find out the tracking image is at the very bottom of the email. So If the message is clipped (It always just clips our social icons on the bottom) and the user doesn't click the show more button it never tracks the open.  Looking at other
      • Weekly Tips: Secure your attachment downloads with Zoho Mail

        Safety is one of our main concerns, whether it’s about device security or online protection. We use tools like fingerprint scanners, facial recognition, and two-factor authentication to keep our devices and email accounts secure. We use methods like OTP
      • Resume Harvester: New Enhancements for Faster Sourcing

        We’re excited to share a set of enhancements to Resume Harvester that make sourcing faster and more flexible. These updates help you cut down on repetitive steps, manage auto searches more efficiently, and review candidate profiles with ease. Why we built
      • Zoho Flow Credits

        Hi , I would like to ask the reason why every time I added plus credit but few days later I will return back to default? (as below I add credit to 3000 but today It change back to 1000) Most important is, when the credit fully used, not any reminder to
      • Can Zoho Flows repeat Actions more than once?

        I'm attempting to make an intentional Zoho Flow loop using the below layout. However, when "WithinLimit" condition is met, the program fails to execute the action "Get & Add Request Co..." again. Is this by design? Is Zoho Flows unable to repeat actions
      • Looking for best practices to import data from SAP Business One (on-prem) into Zoho Analytics via Zoho DataPrep / Databridge — daily automated schedule

        Hi all, I’m using SAP Business One on-prem (SQL Server / or HANA — depending on DB backend) as our ERP. I want to build a pipeline that, every morning at 9:00 AM IST: pulls transactional data (invoices, customers, products, stock, etc.) from SAP B1, loads
      • Zoho One Unified Portal - Applications

        Hello, It is great to see the work on the New Unified Customer Portal. Thanks for that. The number of applications is limited though. It is now only around the Zoho Books ecosystem (Books, Expense...) and Zoho Social. = Are other applications planned
      • Marketing Tip #10: Start a customer loyalty program

        Winning a new customer is great, but keeping them coming back is even better. A loyalty program rewards repeat buyers with points, giving them more reasons to shop again. Over time, this builds trust and long-term relationships. Try this today: Set up
      • Zia Actions: AI-powered Workflow Automation for Faster and Smarter Execution

        Hello everyone, Workflows got a notch better with AI-based actions. Actions such as field extraction, prediction, auto reply, and content generation facilitate quick execution with improved speed and accuracy. Zia can intercept useful details in newly
      • Next Page