Kaizen #177: Duplicate Check Preferences API vs. Upsert API

Kaizen #177: Duplicate Check Preferences API vs. Upsert API

Hello all!!!

Welcome back to another week of Kaizen. Last week, we discussed Optimizing the Use of Record ID Variables in Zoho CRM Queries.

This week, we will explore two important APIs for managing duplicate records in Zoho CRM - Duplicate Check Preferences API and Upsert Records API. While both of these APIs help manage duplicate records, they serve different purposes and are to be used in different scenarios. 




This post covers:
  • What is the Duplicate Check Preferences API?
    • Use Case
    • Duplicate Check Configurations
    • Updating Duplicate Check Configuration
    • How Duplicate Check Preferences Work During Record Creation/Update?
  • What is the Upsert API?
    • Use Case
  • Differences between Duplicate Check Preferences API and Upsert API

What is the Duplicate Check Preferences API

The Duplicate Check Preferences API is a configuration API that allows you to set up criteria using unique fields to manage duplicates across Leads module including Converted Leads and Contacts
in Zoho CRM. Based on the given criteria, the system will restrict the creation or update of duplicate records. For example, if the Phone field is marked as unique and set for duplicate checks, the system will make sure that no two records have the same phone number during records creation or update.

With the Duplicate Check Preferences API, you can define criteria to find duplicates, such as matching email addresses, phone numbers, or custom fields. During record creation or update, Zoho CRM checks the configured criteria against converted leads or contacts. If a match is found, it triggers a "DUPLICATE_DATA" error and blocks duplicates based on your configuration.

By default, the Insert Records API and Update Records API automatically check for this configuration. If a record matches the defined duplicate criteria, the system prevents its creation or update.

Use case

Zylker, a sales team managing customer contacts in Zoho CRM, often imports leads from various sources like website forms, events, and campaigns. However, the team noticed that many duplicate contacts are being created because the same phone number is associated with some of the contacts. This creates confusion and results in redundant work in their sales process.
By using the Duplicate Check Preferences API, Zylker can prevent the anymore duplicate contacts based on phone numbers (phone is used for an example).

Duplicate Check Configurations

In Zoho CRM, you can configure duplicate check preferences via API in two ways. 

i. Configuration in Leads module
The system checks for duplicates on all the Leads using the specified unique fields. By selecting this option, the duplicates will be checked on all the Converted Leads (custom view) as well. This configuration is applicable across all the layouts.
The following is the configuration for duplicate check in the Leads module via API. 

Request Method: POST

Note:
  • The "module" parameter is mandatory, and its supported value is Leads. 
  • The above URL applies to both Leads and Contacts module configurations.
  •  You must mark at least one field as mandatory. So, the system can check for duplicates based on the value in the unique field within the Leads module when creating a record.
Input JSON

{
    "duplicate_check_preference": {
        "type": "converted_records", //Converted Leads custom view in Leads module
    }
}


Response

{
    "duplicate_check_preference": {
        "code": "SUCCESS",
        "details": {},
        "message": "Duplicate check enabled for converted_records successfully.",
        "status": "success"
    }
}




ii. Configuration in Contacts module

By selecting this option, the system will check for duplicates in the Contacts module using mapped fields.

Input JSON

{
    "duplicate_check_preference": {
        "type": "mapped_module_records",
        "type_configurations": [
            {
                "field_mappings": [
                    {
                        "current_field": {
                            "api_name": "Email",
                            "id": "5725767000000002601"
                        },
                        "mapped_field": {
                            "api_name": "Email",
                            "id": "5725767000000002503"
                        }
                    }
                ],
                "mapped_module": {
                    "api_name": "Contacts",
                    "id": "5725767000000002179"
                }
            }
        ]
    }
}


The "Phone" field from both the Leads and Contacts modules is mapped to identify duplicate records.

How Duplicate Check Preferences Work During Record Creation/Update

Consider Zylker has configured the Contacts module ("type":"mapped_module_records") to check duplicate contacts.
For example, a sales representative at Zylker attempts to add a contact from the Cold Call lead source. However, the same contact already exists in the Contacts module, either from the same or a different lead source.
Since the Contacts module is configured for duplicate check preferences, the system will check for duplicates in the Contacts module using mapped fields. During the record insertion action, the system verifies the Contacts module for any matching records based on these unique identifiers. Based on the result, it either creates the record or throws an error.

Use the Insert Records API to create records in a module.

Request Method: POST

Input JSON

{
    "data": [
        {
            "Company": "Villa Margarita",
            "Last_Name": "Dolan",
            "First_Name": "Brian",
            "Email": "brian@villa.com",
            "Phone": "12345",
            "State": "Texas"
        }
    ]
}


Response


 {

    "data": [

        {

            "code": "DUPLICATE_DATA",

            "details": {

                "api_name": "Email",

                "duplicate_record": {

                    "Owner": {

                        "name": "Patricia Boyle",

                        "id": "5725767000000411001",

                        "zuid": "808233918"

                    },

                    "module": {

                        "api_name": "Contacts",

                        "id": "5725767000000002179"

                    },

                    "id": "5725767000000774010" //The record that already exists in the Contacts module.

                },

                "json_path": "$.data[0].Email",

                "more_records": false

            },

            "message": "duplicate data",

            "status": "error"

        }

    ]

}


Duplicates are also checked during record updates. If a record is updated with a value that already exists in a unique field, the system indicates it as a duplicate and returns a "DUPLICATE_DATA" error.

Update Duplicate Check Configuration

To update the previously enabled Duplicate Check option configured in your account, use the Update Duplicate Check Option API.


The Contacts ("type": "mapped_module_records") configuration is used in the below sample input. 


{
    "duplicate_check_preference": {
        "type": "mapped_module_records",
        "type_configurations": [
            {
                "field_mappings": [
                    {
                        "mapped_field": {
                            "api_name": "Phone", //The previously configured Email field as a unique identifier in Contacts has now been replaced with the Phone field.
                            "name": "Contacts",
                            "id": "5725767000000411001"
                        },
                        "current_field": {
                            "api_name": "Phone",
                            "name": "Leads", //The previously configured Email field as a unique identifier in Leads has now been replaced with the Phone field.
                            "id": "5725767000005381030"
                        }
                    }
                ],
                "mapped_module": {
                    "api_name": "Contacts",
                    "name": "Contacts",
                    "id": "5725767000000002179"
                }
            }
        ]
    }
}

You can also retrieve and delete duplicate configuration.

What is the Upsert API?

The Upsert API is a combination of "update" and "insert". 


How it works?

  • You provide a unique identifier (e.g., email, phone number, or a custom field) to check for existing records.

  • If a record with the same identifier exists, it updates that record.

  • If no matching record is found, it creates a new one.

Flow diagram

Use Case 

Zylker, an e-commerce company, uses Zoho CRM to manage customer data. Customers sign up on Zylker’s online store, and their details are stored in the e-commerce platform like Shopify. Over time, customers may update their contact information, or new customers may sign up. To keep customer records in Zoho CRM accurate and avoid duplicates, Zylker uses the Upsert API to:
  • Update existing customer records details if the given unique identifier, such as email or phone number, matches an existing record in Zoho CRM.
  • Insert a new record if no match is found.  This way, Zylker ensures that new customers are added efficiently.

There are two types of duplicate check fields:

i. System-defined duplicate check fields.
ii. User-defined duplicate check fields.

i. System-defined duplicate check fields
The table below lists the system-defined unique fields. When you create a record using the Upsert API, the system checks these fields for duplicate entries. 

Leads

Email

Contacts

Email

Accounts

Account_Name

Deals

Deal_Name

Campaigns

Campaign_Name

Cases

Subject

Solutions

Solution_Title

Products

Product_Name

Vendors

Vendor_Name

PriceBooks

Price_Book_Name

Quotes

Subject

SalesOrders

Subject

PurchaseOrders

Subject

Invoices

Subject

Custom Module

Name


ii. User-defined duplicate check fields
You can set a normal field as a duplicate check field by enabling "Do not allow duplicate values." Note that you can only set fields with the following field-types as unique— Single Line, Email, Phone, Number, Long Integer, and URL.


Request Method: POST

Sample Input JSON

Here, "Email," a system-defined field, has been used as a duplicate check field.
{
    "data": [
        {
            "Email": "alice@mail.com",
            "First_Name": "Alice",
            "Last_Name": "Brown",
            "Phone": "+1-555-222-3333",
            "Order_Date": "2024-01-10",
            "Order_Value": "$175.00"
        },
        {
            "Email": "pat@mail.com",
            "First_Name": "pat",
            "Last_Name": "Davis",
            "Phone": "+1-555-666-7777",
            "Order_Date": "2024-01-15",
            "Order_Value": "$300.00"
        }
    ],
    "duplicate_check_fields": [
        "Email" //You can set the order in which the system checks for duplicate records by specifying the duplicate_check_field array in the input. 
    ]
}

Response


{
    "data": [
        {
            "code": "SUCCESS",
            "duplicate_field": null,
            "action": "insert",
            "details": {
                "Modified_Time": "2025-02-08T09:43:08-08:00",
                "Modified_By": {
                    "name": "Patricia Boyle",
                    "id": "5725767000000411001"
                },
                "Created_Time": "2025-02-08T09:43:08-08:00",
                "id": "5725767000005425036",
                "Created_By": {
                    "name": "Patricia Boyle",
                    "id": "5725767000000411001"
                }
            },
            "message": "record added",
            "status": "success"
        },
        {
            "code": "SUCCESS",
            "duplicate_field": "Email",
            "action": "update",
            "details": {
                "Modified_Time": "2025-02-08T09:43:08-08:00",
                "Modified_By": {
                    "name": "Patricia Boyle",
                    "id": "5725767000000411001"
                },
                "Created_Time": "2025-02-08T08:52:22-08:00",
                "id": "5725767000005425002",
                "Created_By": {
                    "name": "Patricia Boyle",
                    "id": "5725767000000411001"
                }
            },
            "message": "record updated",
            "status": "success"
        }
    ]
}


For more details on how the Upsert API works, refer to the Kaizen #56 - Upsert Records #API.

Differences between Duplicate Check Preferences API and Upsert API

 

                Duplicate Check API

                           Upsert API

Duplicate Check Preferences can be enabled only in the Leads module.

Supports all modules.

Throws a "DUPLICATE_DATA" error if a duplicate is detected.

Updates the existing record with new field values if a match is found for the unique fields; otherwise, inserts a new record.


Use the above Zoho CRM APIs which fit your use cases.
---------------------------------------------------------------------------------------------------------------------

We trust that this post meets your needs and is helpful. Let us know your thoughts in the comment section or reach out to us at support@zohocrm.com 
Stay tuned for more insights in our upcoming Kaizen posts!

Info


      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 #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

          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

                                  • Creating and managing a Team Folder using WorkDrive TrueSync

                                    Hello everyone, Are you tired of constantly switching between your Desktop TrueSync app and the WorkDrive web app to create and manage Team Folders? We’ve made things easier for you. You can now create and manage Team Folders directly within the TrueSync

                                  • Edit images seamlessly with WorkDrive's built-in Image Editor

                                    Are you tired of switching between multiple tools just to make simple edits to your images? We understand the hassle, which is why Zoho WorkDrive now comes with a built-in image editing tool, powered by Zoho Annotator. This tool allows you to edit images

                                  • Supercharge your email workflow with WorkDrive's add-in for Microsoft Outlook

                                    Consider this: You’re handling a critical project, and your inbox is packed with important attachments, email threads, and client communications. The back-and-forth routine of downloading files to your computer, uploading them to WorkDrive, and manually

                                  • Secure and promote your content with Custom Watermarking

                                    Imagine this: You’re a professional photographer who regularly shares your work online with potential clients and collaborators. Recently, you notice that some of your images have been reposted without any credit or permission. This not only impacts your

                                  • Join us in Singapore for the Zoho WorkDrive User Group meetup!

                                    Hello, everyone! Exciting news! We'll be hosting an upcoming Zoho WorkDrive user group meetup in the beautiful city of Singapore this November. At this Zoho User Group meetup, we'll guide you through ways to use WorkDrive as a platform and build custom

                                  • WorkDrive TrueSync now supports ARM64-based Windows devices!

                                    We’re excited to announce that the Zoho WorkDrive TrueSync app now fully supports Windows devices with ARM64 architecture! Whether you're working on an ARM-based device or an x64 processor, you can now enjoy the same seamless file synchronization experience

                                  • Option to Disable Download for Documents Shared via Permalink

                                    Dear Zoho Writer Team, Currently, when sharing a Writer document using the regular permalink (Collaborators with external users), there is no option to restrict the ability to download the document. While the external share link allows such restrictions,

                                  • How to Download a File from Zoho WorkDrive Using a Public Link

                                    How to Download a File from Zoho WorkDrive Using a Public Link If you're working with Zoho WorkDrive and want to download a file using a public link, here's a simple method to do so using API or a basic script. This approach helps developers or teams

                                  • domain not verified error

                                    Hi when i try to upload a video from zoho creator widget to zoho work drive iam getting domain not verified error.I don't know what to do .In zoho api console this is my home page url https://creatorapp.zoho.com/ and this is my redirect url:www.google.com.Iam

                                  • Live Webinar: Getting Started with Zoho WorkDrive - A Complete Overview

                                    Hello everyone, We’re excited to invite you to our upcoming live webinar! Discover how to set up your team, bring in your data, and make the most of WorkDrive’s collaboration, organization, AI, and security capabilities. This session is perfect for anyone

                                  • Calendly One-way sync- Beta Access

                                    Hello Community, Many of our Zoho Calendar users have expressed their interests in Zoho Calendar and Calendly integration. We've been tightly working on with Calendly team to provide a two-way sync between Calendly and Zoho Calendar. However, there have

                                  • The year that was at Zoho Calendar 2023- Part 2

                                    In continuation with our previous post on all the exciting updates and improvements that have shaped Zoho Calendar over the past 12 months, Lets delve into more: Bring your calendars together- Introducing Zoho Calendar and Outlook calendar synchronisation

                                  • Tip of the week #18: Change the event organizer in Zoho Calendar.

                                    We cannot always be available to conduct an event when we organise one. In these circumstances, you can use Zoho Calendar to change the event organizer at any moment before the event begins. This way, you can avoid cancelling the event while still taking

                                  • Tip of the week #20: Create and manage multiple personal calendars.

                                    Zoho Calendar provides users with the facility to create and manage as many calendars as required. All these calendars can be managed and edited as per user requirements. You can alter the calendar view, make changes to the calendar theme, share the calendar

                                  • Tip of the week #24: Subscribe to the calendars of a Zoho Calendar user.

                                    Calendars that are created by Zoho Calendar users can also be added to your Zoho calendar. All public calendars listed by the users will be available when you enter the email address. You can choose the calendar you need to subscribe to. Once the email

                                  • Tip of the week #26: Import/ Export calendars in Zoho Calendar.

                                    Any calendar on the web or calendars that you create in any other calendar application can be imported in to Zoho Calendar. This will help you to add the events from the calendars that you import to your Zoho Calendar. You also have the option to export

                                  • Removing calendar for zoho email group

                                    How do I make it so that an email group created in Zoho Mail does NOT have a calendar? I have a couple groups for our phone systems voicemails - one for each department. Voicemail recordings are sent to this groups email address so they have access to

                                  • Tip of the week #27: Edit personal calendars in Zoho Calendar.

                                    In Zoho Calendar, the personal calendars you create can be edited to make changes you need to make. Edit a Personal Calendar The following changes can be made to the personal calendar by editing it: Calendar title Calendar color Reminders and Description

                                  • Tip of the week #28: Show/ hide, enable/ disable and empty/ delete your calendars in Zoho Calendar.

                                    The popularity of online calendars has soared in recent years. It's used both for personal and professional reasons. Calendars have evolved into an effective productivity tool in our lives, from creating events for birthdays and anniversaries to scheduling

                                  • Tip of the week #30: Share calendars publicly in Zoho Calendar.

                                    In Zoho Calendar, calendars that are created under My Calendars can be shared publicly. Making your calendar public allows others to view it. When you need to share your calendar with a larger group, public sharing can help. You can restrict others from

                                  • Tip of the week #31: Share your personal calendars within organization.

                                    Keep your Organization members aware of what's happening. In Zoho Calendar, you can share your personal calendar with all the members in your organization using the Share with org option.When you enable org sharing for a particular personal calendar,

                                  • Tip of the Week #33: Appointment scheduler in Zoho Calendar.

                                    In Zoho Calendar, you can use the Schedule Appointment option to share your appointment request form with the public, allowing people to fill out the form to request an appointment with you. This form can be embedded on your website or blog. Visitors

                                  • Tip of the Week #34: Embed Calendars using Zoho Calendar

                                    You can make your calendars public and visible to the general public by embedding them in your websites/blogs using Zoho Calendar. You can use the embed code to add your own calendars to your website's/ blog's HTML code, and the calendar will appear on

                                  • Tip of the week #35: Migrate to Zoho Calendar from Google Calendar.

                                    If you are looking to move your Google Calendar events to Zoho Calendar, never worry about missing out the events from your Google Calendar. You can migrate the events from Google Calendar using the export option and import it to Zoho Calendar and manage

                                  • Tip of the week #36: Migrate to Zoho Calendar from Outlook Calendar.

                                    If you've been using Outlook calendar and looking to migrate to Zoho Calendar, you can seamlessly export your calendars from Outlook and import them into Zoho Calendar without losing any events, participants, and the reminders set for each event. To migrate

                                  • Shared calendar issues and duplications

                                    Apparently there was a calendar update?  Now when I schedule an event for a team member that has shared his calendar with me, the event makes me the organizer and adds the event to my calendar as well.  Previous to this "update" I would scheduled an event

                                  • Subscribed Calendar

                                    Hi i have subscribed to a calendar for Holidays in Canada it shows all the holidays perfectly but every one of them has the word Canada before the rest of the name is there a way to remove that word Canada? It takes up a lot of space in the square on

                                  • The year that was at Zoho Calendar 2023- Part 1

                                    Hello, amazing community members! Happy new year from all of us here at Zoho Calendar. As we begin the new year, we'd like to thank each and everyone of our community members for your unwavering support and love that you have shown for Zoho Calendar.

                                  • Zoho Calendar 2024: A Year in Review

                                    Hello, community members! Happy new year from all of us here at Zoho Calendar. As we turn the page to a new year, we extend our heartfelt gratitude to every member of our Zoho Calendar community for your continued support and enthusiasm. Your feedback

                                  • Zoho Calendar not syncing correctly with personal Google Calendar

                                    Coming to this forum as Zoho Calendar support team is not responding, any more. For the past 8 weeks, I have been having an issue with Zoho Calendar not syncing with my personal Google Calendar correctly. I subscribed to Zoho Calendar iCal in my personal

                                  • Zeptomail API error 500 internal server error

                                    Hi Everyone, getting this eror continuously! Can anyone please guide around the same! Zeptomail API error 500 internal server error Best Regards

                                  • Waiting multiple days to buy credits, causing my website to suffer

                                    So I own a fairly large website that gets a lot of registered users. I use transmail send activation emails, and also forgot password emails. I sent an email to zoho's presales team when I was only at 4K/10K emails sent, hoping to buy more credits before

                                  • Follow up

                                    Hello, I sent a message 2 days ago but I don't receive any response and I cannot find my ticket here. this is the ticket: Your ticket has been created with the ticket ID 68925465 and subject "Fwd: Fishing-alert" looking forward to seeing your response.

                                  • What's new in TransMail!

                                    Note: TransMail is now ZeptoMail. Click here to know more. Hello again, everyone! We've recently crossed the 6 months mark of TransMail's launch. In this time post our launch, we have been constantly working on updating our platform and adding new features

                                  • June 2021 in TransMail!

                                    Note: TransMail is now ZeptoMail. Click here to know more. Hello again, everyone! Hope you and your loved ones are doing well. If you're doing less than fine, we truly hope that things only get better for you.  We've had a few updates in the past month

                                  • TransMail has a new name—ZeptoMail!

                                    Tried navigating to TransMail's community forum but see a different name now? That's because TransMail has a new name. TransMail is now ZeptoMail! As we’ve grown from an internal service used mainly by other Zoho products to an up-and-coming competitor

                                  • July 2021 in ZeptoMail!

                                    Note: TransMail is now ZeptoMail. Click here to know more. Hello again, everyone! Hope you and your loved ones are doing well.  We've had a few updates in the past month in ZeptoMail—some new features and some important announcements. Take look at what

                                  • Send Email From the ZeptoMail BY API

                                    What is Zeptomail:- Transactional email service with reliable and fast delivery How we can Create a Connection for Zeptomail in Zoho CRM Go to the Setup Click on Connection Enter Connection Details:- Generate Consumer Key & Consumer Secret Using Zoho

                                  • Customer email on Opencart 3

                                    When I place an order, 2 emails are sent: 1) administrator 2) to the user The administrator receives a beautiful letter, but the user receives a damaged letter (see screenshot). What could be the problem?

                                  • [Announcement] Insert image from URL changes in Zoho Writer

                                    Hi Zoho Writer users! We'd like to let you know that we've changed the behavior of the Insert image from URL option in Zoho Writer for security reasons. Earlier behavior Once you inserted an image URL in a Writer document, the image would be fetched from

                                  • Next Page