Kaizen #1 - Fields in CRM #API

Kaizen #1 - Fields in CRM #API

Hey everyone, welcome to the Zoho CRM Developer Community series. The series is named 'Kaizen', meaning continuous improvement. Through these series of posts, we aim at resolving all the frequently asked questions, common hurdles, and discuss the best practices to be followed by the CRM developer community.

We have five different streams under kaizen. Each one is related to a different stream of CRM developmentAPI v2.0, Functions, SDK, Mobile Development, and Widgets. Every post will be tagged under one of these streams with a hashtag(#). Based on your area of expertise, you can choose to follow any of them. 

So, here is the drill: 
  • We will drop a few eggs of knowledge on a most discussed topic in our developer community forum, and tag it under one of the five streams. 
  • As always, you can keep the questions coming and kick start a productive discussion. 
  • The routine iterates every Friday.
Since this is our first forum post, we decided to start with something basic.

The problem


In ZohoCRM, data is organized into fields (individual chunks of data). For instance, 'First Name', 'Email', and so on. 

As we are all aware, there are multiple field types available in Zoho CRM. Each field type has its limitations on the type and length of data that can be stored in that particular field. It is essential to adhere to these restrictions while inserting, updating, upserting data. If not, it can lead to unsuccessful requests and errors. 

What you will learn from this post


In this post, we are going to walk you through the following, to give you a better idea of different field types in Zoho CRM and their role while inserting, updating, and upserting records. 

  • Different types of fields in Zoho CRM
  • Details about each field type - [ data type, limitations (what type of characters are accepted), size ]
  • Inserting records in Zoho CRM- with emphasis on fields [System-defined mandatory fields for each module]
  • A few use-cases on inserting records in Zoho CRM

a. Different types of fields in Zoho CRM


Fields are used to store data in a structured way in Zoho CRM. 

Based on how the data is stored, they are of two types:


(i) Read-only fields - For these fields, data is system generated. For instance, "created_by", "created_time", "last_activity_time", "modified_by", "modified_time", and so on. Users cannot modify these fields.
 
(ii) Read/Write fields - For these fields, data is set by the user. For instance, "first_name", "last_name", "email", and so on. 

For custom fields and default fields, you can update this property by editing the field-permissions in the set-up screen in UI. You set the fields to be either read-only, read/write, or hidden.

Note that this property cannot be altered for system-defined mandatory and custom mandatory fields.

b. Details about each field type


Just like data types available in multiple programming languages, there are multiple field types in Zoho CRM, allowing you to store different types of data about your customers, users, vendors, and so on. For instance, we have 'Single Line' field type where you can store strings, it allows you to store all the alphanumeric and special characters within a length of 255 characters. 

Apart from default fields, Zoho CRM allows you to create custom fields. Knowing about the field types is essential to pick the right kind of field type for your custom field. For instance, a 'phone' field type would be more appropriate for a custom-field that stores phone numbers than 'single line' type, since phone allows only numeric characters and '+' (to add extensions).

You can find the details about data types and restrictions about each field type in 'modules and fields' section in Zoho CRM UI. Through API, you can get the data type of the fields in a module using meta data API

URL

​​​{{api-domain-URL}}/crm/v2/settings?fields?module={module_API_name}


The following table gives you specific details about each field type in Zoho CRM and their limitations. 
The JSON type and the data type of the field-types are extracted from fields meta data API. 

JSON type - tells in what format the field should be passed in request-body/ will be received in response
data type - tells the type of data that can be stored in a field with that particular field-type


Field-type
Limitations
Example
Single Line
JSON type - string
data type - text
Accepts up to 255 characters.

Accepts alphanumeric and special characters.
"Last_name": "Mike O'Leary"


Multi-Line
JSON type - string
data type - textarea


Small - accepts up to 2000 characters.

Large - accepts up to 32000 characters.


You will not be able to use this field to create custom views, reports or other filters.



Accepts alphanumeric and special characters.




"Description": "This is a sample description"


Email
JSON type - string
data type - email


Accepts valid email IDs.

"Email": "merced@zylker.com"


Phone
JSON type - string
data type - phone


Accepts up to 30 characters. This limit may vary based on the value configured in 'Number of characters allowed' in the properties pop-up of the field, in UI.

Accepts only numeric characters and '+' (to add extensions).

"Phone": "9800000099"


Picklist
JSON type - string
data type - picklist


You can either pass an existing pick list value or add a new one. 


The pick list value accepts all alphanumeric and special characters.

"Industry": "automobile"


Multiselect pick list
JSON type - jsonarray
data type - multiselectpicklist


You can either pass existing pick list values or add a new one.


The pick list value accepts all alphanumeric and special characters.


"Courses opted": [
                               "Analytics", 
                                "Big data"
                                           ]



Date
JSON type - string 
data type - date


Accepts date in yyyy-MM-dd format.

"Date": "2019-08-28"


Date/time
JSON type - string
data type - datetime



Accepts date and time in yyyy-MM-ddTHH:mm:ss±HH:mm
ISO 8601 format.


"Date_Time": "2019-08-28T20:32:36+05:30"


Number
JSON type - integer
data type - integer


Accepts numbers up to 9 digits. This limit may vary based on the value configured in 'Maximum digits allowed' in the properties pop-up of the field, in UI.

Accepts only numeric values.

"No. of employees": "350"


Currency
JSON type - double
data type - currency


Before decimal point - accepts numbers up to 16 digits.  This limit may vary based on the value configured in 'Maximum digits allowed' in the properties pop-up of the field, in UI.


After decimal point - accepts precision up to 9 digits. This limit may vary based on the value configured in 'Number of decimal paces' in the properties pop-up of the field, in UI.

Accepts only numeric values.

"Annual Revenue": 250000.90


Decimal
JSON type - double
data type - double


Before decimal point - accepts numbers up to 16 digits. This limit may vary based on the value configured in 'Maximum digits allowed' in the properties pop-up of the field, in UI.


After decimal point - accepts precision up to 9 digits. This limit may vary based on the value configured in 'Number of decimal places' in the properties pop-up of the field, in UI.

Accepts only numeric values.

"Decimal_1": 250000.50


Percent
JSON type - double
data type - double


Accepts numbers up to 5 digits.

Accepts only numeric values.

"Percentage": 25


Long integer
JSON type - string
data type - bigint


Accepts numbers up to 18 digits. This limit may vary based on the value configured in 'Maximum digits allowed' in the properties pop-up of the field, in UI.


Accepts only numeric values.

"EAN_Code":"0012345600012"


Checkbox
JSON type - boolean
data type - boolean


Accepts only Boolean values(true,false).

"Email_Opt_Out": true


URL
JSON type - string
data type - website


Accepts valid URLs.

"URL": "https://www.zylker.com"


Lookup
JSON type - jsonobject
data type - lookup


Accepts unique ID of the record, which you can get through get records API.


"Owner":
  {
  "id":"4150868000000623001"
  }



User
data type - userlookup


This is a default look-up field to users in Zoho CRM.


"User":
  {
  "User_Name":"Patricia Boyle",
  "id":"4150868000000623001"
  }




C. Inserting Records in Zoho CRM

Now that we have covered different field types and details about each field type, let us move on to inserting records in Zoho CRM. 

System-defined mandatory fields for each module

While inserting records there are a few system-defined mandatory fields that you need to mention. Inorder to successfully insert records in Zoho CRM, make sure you enter user-defined mandatory fields too.

The following table gives you information about the system-defined mandatory fields and their field type in Zoho CRM:

Module
System-defined mandatory field
Leads
"Last_Name" - Single Line
Contacts
"Last_Name" - Single Line
Accounts
"Account_Name" - Single Line
Deals
"Deal_Name"- Single Line
"Stage" - Picklist
Tasks
"Subject" - Multi Line
Calls
"Subject" - Multi Line
"Call_Type" - Picklist
"Call_Start_Time" - Date/Time
"Call_Duration" - Single Line
Events
"Event_Title"- Single Line
"Start_DateTime" - Date/Time
"End_DateTime" - Date/Time
Products
"Product_Name" - Single Line
Quotes
"Subject"- Single Line
"Product_Details" - Product Line Item
Invoices
"Subject"- Single Line
"Product_Details" - Product Line Item
Campaigns
"Campaign_Name" - Single Line 
Vendors
"Vendor_Name"- Single Line
Price Books
"Price_Book_Name"- Single Line
"Pricing_Details"- JSON Array with "from_range", "to_range", "discount"
Cases
"Case_Origin" - Picklist
"Status"- Picklist
"Subject" - Single Line
Solutions
"Solution_Title"- Single Line
Purchase Orders
"Subject"- Single Line
"Vendor_Name"- Lookup
"Product_Details" - Product Line Item
Sales Orders
"Subject"-  Single Line
"Product_Details" - Product Line Item 


d. A few use-cases on inserting records in Zoho CRM

A few special cases while inserting records in Zoho CRM are as follows:

  • Product Line Item
  • Reminder
  • Repeat
  • Pricing_Details
  • What_ID, Who_ID
  • Participants

Every Zoho CRM API request body to insert, update, or upsert records should be given in the JSON format. To know the format for each of the above mentioned special cases, refer to our API guide.


Next 'Kaizen' - OAuth2.0 and Self Client #API





















    Access your files securely from anywhere

        All-in-one knowledge management and training platform for your employees and customers.






                              Zoho Developer Community




                                                    • 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


                                                              Manage your brands on social media



                                                                    Zoho TeamInbox Resources



                                                                        Zoho CRM Plus Resources

                                                                          Zoho Books Resources


                                                                            Zoho Subscriptions Resources

                                                                              Zoho Projects Resources


                                                                                Zoho Sprints Resources


                                                                                  Qntrl Resources


                                                                                    Zoho Creator Resources



                                                                                        Zoho CRM Resources

                                                                                        • CRM Community Learning Series

                                                                                          CRM Community Learning Series


                                                                                        • Kaizen

                                                                                          Kaizen

                                                                                        • Functions

                                                                                          Functions

                                                                                        • Meetups

                                                                                          Meetups

                                                                                        • Kbase

                                                                                          Kbase

                                                                                        • Resources

                                                                                          Resources

                                                                                        • Digest

                                                                                          Digest

                                                                                        • CRM Marketplace

                                                                                          CRM Marketplace

                                                                                        • MVP Corner

                                                                                          MVP Corner







                                                                                            Design. Discuss. Deliver.

                                                                                            Create visually engaging stories with Zoho Show.

                                                                                            Get Started Now


                                                                                              Zoho Show Resources

                                                                                                Zoho Writer

                                                                                                Get Started. Write Away!

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

                                                                                                  Zoho CRM コンテンツ




                                                                                                    Nederlandse Hulpbronnen


                                                                                                        ご検討中の方




                                                                                                                • Recent Topics

                                                                                                                • 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
                                                                                                                • 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?
                                                                                                                • 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:
                                                                                                                • 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
                                                                                                                • 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
                                                                                                                • 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
                                                                                                                • Bring real app analytics into Zoho Creator apps with Zoho Apptics

                                                                                                                  We’re kicking off the year with a release we’ve been looking forward to for a long time. After being in the works for a while, Zoho Creator and Zoho Apptics are now officially integrated, bringing in-depth product analytics directly into the Zoho Creator
                                                                                                                • ZohoMail's outbound webhook sends incorrect folderId and messageId

                                                                                                                  I used a webhook (outbound) from within ZohoMail to send message details when a new message arrives that meets specific criteria. I received this data correctly. Now I want to get the attachment from this email message. When I made an api call using folder
                                                                                                                • Use URL field to populate Image in a Email Template

                                                                                                                  We have two records Record 1: Appointments (with a Lookup to Doctors module) Related Record 2: Doctors (with a URL field that is an image of the doctor) We would like to populate a CRM email template with the image of the URL field for the related doctor
                                                                                                                • Looking for Guidance on Building a Zoho Website

                                                                                                                  I'm exploring the possibility of building a custom website with specific features using Zoho as an alternative platform. My goal is to create something similar to https://gtasandresapk.com , with the same kind of functionality and user experience. I'd
                                                                                                                • Ability to add VAT to Retainer Invoices

                                                                                                                  Hello, I've had a telephone conversation a month ago with Dinesh on this topic and my request to allow for the addition of VAT on Retainer Invoices.  It's currently not possible to add VAT to Retainer Invoices and it was mutually agreed that there is absolutely no reason why there shouldn't be, especially as TAX LAW makes VAT mandatory on each invoice in Europe!   So basically, what i'm saying is that if you don't allow us to add VAT to Retainer Invoices, than the whole Retainer Invoices becomes
                                                                                                                • Zoho Bookings Forge: A hands-on workshop series

                                                                                                                  Hello all! We’re hosting a five-part, hands-on workshop series to help you optimize Zoho Bookings for your business. In these sessions, we’ll cover key features, practical use cases, and clear steps to get started or improve your current setup. Here are
                                                                                                                • Introducing parent-child ticketing in Zoho Desk [Early access]

                                                                                                                  Hello Zoho Desk users! We have introduced the parent-child ticketing system to help customer service teams ensure efficient resolution of issues involving multiple, related tickets. You can now combine repetitive and interconnected tickets into parent-child
                                                                                                                • Update Existing Records greyed out in Free Version

                                                                                                                  Trying to update records from an Excel sheet, and not getting the option to update. Only option is to add as new accounts. All documentation I can see says update should be an option! Accounts, Leads, Contacts, all the same.
                                                                                                                • Help with deluge script

                                                                                                                  Hi Community, this is my first Deluge script. I've pieced it together from reading various articles I want to use it in a workflow to 1 Convert a lead to a contact 2. Create a record in a custom module Below is what I have got so far but it does not fire
                                                                                                                • Introducing Workqueue: your all-in-one view to manage daily work

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

                                                                                                                  Hi, The delete button were hide into the three dot button. Can I display outside? why Zoho make this update?
                                                                                                                • Zoho Vault CLI for Developers and Automations

                                                                                                                  Hi everyone, If you're managing credentials in scripts, CI/CD pipelines, or automation workflows, Zoho Vault's Command Line Interface (CLI) can help you securely access and manage secrets directly from your terminal. Zoho Vault was launched in 2013 as
                                                                                                                • On Edit Validation Blueprint

                                                                                                                  Hello, I have a notes field and a signature field. When the Approve button is clicked, the Signature field will appear and must be filled in. When the Reject button is clicked, the Notes field will appear and must be filled in. Question: Blueprint will
                                                                                                                • 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, Pages. Error on web-page comes back
                                                                                                                • Zoho Subscriptions -- Zoho Commerce integration

                                                                                                                  Is there integration between Zoho Subscriptions and Zoho Commerce? I would like to create subscription plans in Zoho Subscritpions and list them for on my Zoho Commerce store.
                                                                                                                • Synching changes to Stripe when changes are made in Zoho Billing

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