Kaizen #125 Manipulating Multi-Select Lookup fields (MxN) using Zoho CRM APIs

Kaizen #125 Manipulating Multi-Select Lookup fields (MxN) using Zoho CRM APIs

Hello everyone!
Welcome back to another week of Kaizen. In last week's post in the Kaizen series, we discussed how subforms work in Zoho CRM and how to manipulate subform data using Zoho CRM APIs.
In this post, we will discuss how to manipulate a multi-select lookup fields using Zoho CRM APIs.

Multi-select lookup field

The Multi-Select Lookup Field enables you to establish a many-to-many relationship between two different modules in CRM. It allows you to associate multiple records with each other, from two different modules. 
These associations are stored in an individual module called "Linking Module". Consider there are two modules, Employees and Skills. The Employees module contains details regarding Zylker's workforce, and the Skills module contains details regarding various skills like Social Media Marketing and Content Marketing.
We want to associate multiple skills to an employee. So, a multi-select lookup can be created in the Employees module. When doing so, similar multi-select lookup field will be automatically created in the Skills module, along with the EmpXSkills linking module by Zoho CRM. The underlying data model is described in the below image.
The above chart shows the data model representation when you create a multi-select lookup field in a module. Here, there are two lookup fields—one pointing to the Employees module and the other pointing to the Skills module.
In the linking module, two lookup fields (lookup fields with api names - Employees and Skills) will be created. The lookup fields, one pointing to Employees and the other pointing to Skills from the linking module, establish a connection between the linking module and its associated module.

How to associate an employee's skills while creating an Employee record through the Insert Records API

API names you need before invoking the API
  • The API name of the multi-select lookup field in the modules you want to insert data.
  • API names of the lookup fields in the linking module. Eg: here the API Name of the linking module is "EmpXSkills" and the corresponding lookup field api names are "Employees" & "Skills". You can use the Fields Metadata API for Employees and Skills to get these details.
Step 1
Know the API name of the multi-select lookup field in the module (In our case, Skills is the multi-select lookup field in the Employees module)

To know the API names of the multi-select lookup fields, make a GET - Fields Metadata API call. Among all the Employee's fields, multi-select lookup field can be identified by the json key data_type with the value multiselectlookup. The corresponding connected module can be found from the json connected_module. Below is the API call & response for such a multi-select lookup field.

Request URL : {api-domain}/crm/v6/settings/fields?module=Employees
Request Method: GET

Sample Response: 

The above highlighted keys are the details of the Multi select lookup field. The corresponding keys are explained below:

"multiselectlookup": {
                "display_label": "Skills",   //Display label of the MxN field in the Employees module
                "linking_module": {
                    "api_name": "EmpXSkills", //API name of the linking module
                    "id": "5725767000002166520"
                ...
                "lookup_apiname": "Employees", //API name of the Employee lookup field in the linking module
                "connected_module": {
                    "api_name": "Skills", //API name of the connected module
                    "id": "5725767000002165263"
                },
                "api_name": "Skills_In_Related_List", //API of the related list of the connected module Skills in the Employees module.
                "connectedfield_apiname": "Employees", //API Name of the multi-select lookup field in the connected module (Skills)
               "connectedlookup_apiname": "Skills", //API name of the Skills module lookup field in the linking module.
                "id": "5725767000002166655" //Related List ID
            },
                ...

Step 2
Using the api_name of the linking module, make a GET Fields metadata API call to get the list of fields (along with their api_name) present in it. It lists all fields of the linking module in the response. 
Sample Request and Response

Search for the "data_type": "lookup" in the response. The lookup fields represent the connected modules in association with the linking module.
For example, in our case, the response will have two lookup fields. One of the lookup fields (with api name Employees) points to the Employees module, and the other one (with api name Skills) points to the Skills module. 

Step 3
Associate records via the Multi-select lookup field using the Insert Records API

To associate records via the MxN field, you need to know the IDs of the records in the Skills module. Here is the input body to insert the skills in the Employee module with the multi-select lookup field Skills. 
Here is the input body to insert a new Employee record and associate a Skills record to it using the MxN field.

Request URL: {{api-domain}}/crm/v6/Employees
Request Method: POST
Sample Input:
{
    "data": [
        {
            "Name": "Patricia",
            "Email": "patricia@mail.com",
            "Position": "Marketing Specialist",
            "Year_of_Experience": 5,
            "Skills": [ //API name of the multi-select lookup field in Employee module
                {
                    "Skills": { //API Name of the lookup field pointing to the Skills module in the linking module
                        "name": "Marketing",
                        "id": "5725767000002149427" //Record ID in the Skills module 
                    }
                },
                {
                    "Skills": {
                        "name": "Social Media Marketing",
                        "id": "5725767000002149476" 
                    }
                }
            ]
        }
    ]
}



How to disassociate an employee & skills relation while updating an Employee record through the Update Records API 

Request URL: {{api-domain}}/crm/v6/Employees
Request Method: PUT

Sample Input:

{
    "data": [
        {
            "id": "7890710000097291",
            "Name": "Patricia",
            "Email": "patricia@mail.com",
            "Position": "Marketing Specialist",
            "Year_of_Experience": 5,
            "Skills": [
                {
                    "_delete": null, //This association in the linking module will be deleted
                    "id": "5725767000008126002" //Record created in the linking module
                }
            ]
        }
    ]
}

Sending _delete:null will cause delinking of the association.

How to associate an employee's skills via "Linking Module"

You can associate the relationship between Employees and Skills module by creating records in the Linking module (EmpXSkills). Use the API names for the corresponding lookup fields, Employee (API Name: Employees) and Skills (API Name: Skills) in the input body.

Request URL: {{api-domain}}/crm/v6/EmpXSkills
Request Method: POST

Sample Input
{
   "data": [
        {
            "Name": "Patricia",
            "Employees": { 
                "id": "5725767000002161001" //unique record ID in the Employees module. GET your ID here
            },
             "Skills": { 
                "id": "5725767000002149476" //unique record ID in the Skills module. GET your ID here
            }
        }
    ]
}


Sample Response


The id in the above response is the Primary Key ID of an Employee-Skill association record in the linking module. This ID can later be used to do specific operations like association update or deletion via API.

How to disassociate an employee & skills relationship via "Linking Module"
Use the Delete Records API to delete the record which corresponds to the specific relation between Employee and Skills module in the EmpXSkills module. You can get the record ID for the specific association using the Get Records API for the linking module. 
Use the Delete Record API to delete the specific record, thereby deleting the specific association between the Employee and Skills record. Please note that only the association is removed, and not the individual records. 
Sample Request and Response



When to use create/update operation in Employees/EmpXSkills module?

Use "Employees" module: When you want to create/update records in the Employees module, and associate the record with a Skills record in a single API call.
Use "EmpXSkills" module: When you want to associate/disassociate the relationship between existing Employees and Skills records. 

Retrieve data via COQL API and Bulk Read API

There may be situations where you need to fetch records based upon certain conditions.
For example, Zylker's HR team wants to retrieve the list of employees having more than 4 years of experience and are experts in Social media marketing. In this case, they can use Zoho CRM's COQL API or Bulk Read API. Let's see how to achieve this.

Retrieving MxN data via COQL API

We know that both the Employees and Skills modules' association data is maintained in the linking module. In order to retrieve data from the linking module, query using the API name of the lookup fields in the linking module.

Request URL: {{api-domain}}/crm/v6/coql
Request Method: POST

Sample Input:

{
    "select_query" : "select Employees.Name as employee_name, Employees.Year_of_Experience as employee_experience, Skills.Name as skill_name from EmpXSkills where Employees.Year_of_Experience > 4 and Skills.Name like '%Social%'"
}


From the SQL perspective, above COQL can be interpreted as
select emp.Name as employee_name, emp.Year_of_Experience as employee_experience, skill.Name as skill_name from EmpXSkills left join Employees as emp on EmpXSkills.Employees = emp.id left join Skills as ski on EmpXSkills.Skills = ski.id where emp.Year_of_Experience > 4 and ski.Name like '%Social%'

Sample Response


Retrieving MxN data via Bulk Read API

Bulk Read API allows you to fetch a large set of data i.e., you can fetch a maximum of 200,000 records in a single API call. 
To export linking module records, use its API name.

Request Method: POST
Sample input to export linking module's records:
{
    "callback": {
        "method": "post"
    },
    "query": {
        "module": {
            "api_name": "EmpXSkills" //API name of the linking module
        },
        "file_type": "csv"
    }
}

Export linking module records that meet the specified criteria
To export linking module's records based on the given criteria above (similar to the COQL API).
{
    "callback": {
        "method": "post"
    },
    "query": {
        "module": {
            "api_name": "EmpXSkills"
        },
        "fields": [
            "Employees.Name",
            "Employees.Year_of_Experience",
            "Skills.Name"
        ],
        "criteria": {
            "group": [
                {
                    "field": {
                        "api_name": "Employees.Year_of_Experience" 
                    },
                    "comparator": "greater_than",
                    "value": "4"
                },
                {
                    "field": {
                        "api_name": "Skills.Name"
                    },
                    "comparator": "contains",
                    "value": "Social"
                }
            ],
            "group_operator": "AND"
        }
    }
}


As the API is an asynchronous API, the response will not be available instantly; the bulk read job is scheduled, and the status can be checked. Once the job is completed, you will be notified in the callback URL. The records are available in a downloadable CSV file or ICS file (for events). See the Bulk Read API document to know how to view the status of the scheduled job and download the file, along with more sample requests and responses.

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!

------------------------------------------------------------------------------------------------------------------------------
-------------------------------------------------------------------------------------------------------------------------------
Cheers!



    • Recent Topics

    • API ZOHO CRM Picket list with wrong values

      I am using Zoho API v.8. with python to create records in a custom module named "Veranstaltung" in this custom module I've got a picket list called "Email_Template" with 28 Values. I've added 8 new values yesterday, but if I try to use on of those values

    • How can I setup Zoho MCP with Chat GPT

      I can set up custom connections with Chat GPT but I cat an error when I try to set it up. The error is: "This MCP server can't be used by ChatGPT to search information because it doesn't implement our specification: search action not found" Thoughts?

    • What if I dont see contacts on the left side list

      My CRM does not show the contacts tab. In order to create list this is needed and I cant find it.

    • Comments Vs. Replies

      I'm curious as to the difference between a "Reply" and a "Comment" on a ticket. It appears that "Replies" are what's used to determine response time SLA's and there are also used to automatically re-open tickets. I'm just trying to understand the key differences so I can educate both our clientele and our back-end users on which function/feature to use to better improve the ticket lifecycle. If anyone has any insight it would be appreciated. Thanks!

    • Create custom rollup summary fields in Zoho CRM

      Hello everyone, In Zoho CRM, rollup summary fields have been essential tools for summarizing data across related records and enabling users to gain quick insights without having to jump across modules. Previously, only predefined summary functions were

    • Transitioning to API Credits in Zoho Desk

      At Zoho Desk, we’re always looking for ways to help keep your business operations running smoothly. This includes empowering teams that rely on APIs for essential integrations, functions and extensions. We’ve reimagined how API usage is measured to give

    • Add Custom Reports To Dashboard or Home Tab

      Hi there, I think it would be great to be able to add our custom reports to the Home Tab or Dashboards. Thanks! Chad

    • Resetting auto-number on new year

      Hi everyone! We have an auto-number with prefix "D{YYYY}-", it generates numbers like D2025-1, D2025-2, etc... How can we have it auto-reset at the beginning of the next year, so that it goes to D2026-1? Thanks!

    • Figma in Zoho Creator

      Hi Team, I’m creating a form using Figma and would like to know how to add workflows like scheduling, custom validation, and other logic to it. Can anyone help me understand how to set this up for a Figma-based Creator UI form?

    • Experience effortless record management in CRM For Everyone with the all-new Grid View!

      Hello Everyone, Hope you are well! As part of our ongoing series of feature announcements for Zoho CRM For Everyone, we’re excited to bring you another type of module view : Grid View. In addition to Kanban view, List view, Canvas view, Chart view and

    • Microsoft Phone Link

      Does anyone know if you can use Microsoft Phone Link to make calls through Zoho?

    • Voip Phone system that integrates with Zoho

      Just checking to see if anyone could tell me what phone system they are using with Zoho that is on the list of systems that integrate with Zoho.  I use Vonage and have been with them for quite a few years but their service has really gone down hill and

    • Posibility to add Emoticons on the Email Subject of Templates

      Hi I´ve tried to add Emoticons on the Subject line of Email templates, the emoticon image does show up before saving the template or if I add the Emoticon while sending an Individual email and placing it manually on the subject line. Emoticons also show

    • Removing Related Modules Lookup Fields Assignment / Relationship

      Issue: When creating a related list, I accidently selected module itself creating a circle reference. See attached. Situation: I wish to relating a custom module called "Phone Calls" to Leads and Contacts. Outcome: 1) I either want to remove the this

    • [Product Update] TimeSheets module is now renamed as Time Logs in Zoho Projects.

      Dear Zoho Analytics customers, As part of the ongoing enhancements in Zoho Projects, the Timesheets module has been renamed to Time Logs. However, the module name will continue to be displayed as Timesheets in Zoho Analytics until the relevant APIs are

    • Selection Filed for Data Export section

      Hi FSM Team, I hope you are all doing well. I would like to share an idea for future development based on my experience. Currently, in FSM, we can only download up to 5,000 records at a time. If the development team could add a selection option to choose

    • Enable / show scroll bar when Mega Menu is opened

      Hey there I am using the mega menu add-on and experience a "flicker" whenever the mega menu opens. The reason is, that the scrollbar, which has a width of a few pixels, stops showing when the mega menu opens. As the scrollbar disappears the whole page

    • Restore lost Invoice!

      Some time ago I tried to Upgrade from Invoice to Books. I not upgraded and staid n Invoice. Now i tried again and first i deleted the old trial of books. But now all is gone, PLEASE HELP!! i have no backup and i have to have at least 7 years data retention by law. 

    • Connecting two modules - phone number

      Hi, I’d like some guidance on setting up an automation in Zoho CRM that links records between the Leads module and a custom module called Customer_Records whenever the phone numbers match. Here’s what I’m trying to achieve: When a new Lead is created

    • Group Emails

      I have synced Zoho CRM to Campaigns but there are certain email not synced. showing it is Group Emails, but this email ids belongs to different individuals. please provide a solution as i nedd to sync the same.

    • Kaizen# 209 - Answering Your Questions | All About Client Script

      Hello everyone! Welcome back to another exciting Kaizen post! Thanks for all your feedback and questions. In this post, let's see the answers to your questions related to Client Script. We took the time to discuss with our development team, carefully

    • 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

    • Formula fields not refreshing until page is reloaded

      I need help/advice about the formula fields and how I can refresh the information in real-time. We have two formula fields on our deals page which show calculated prices: One formula is in a subform which calculates the subform total + 1 other field amount

    • Can you prevent closing Ulaa window when the last tab is closed (inadvertently)?

      Most browsers have started to bring this feature in to prevent closing their windows when the last tab is closed (inadvertently). I hope Ulaa should get this in too.

    • Enhancements to finance suite integrations

      Update: Based on your feedback, we’ve updated the capabilities for integration users. In addition to the Estimates module, they can now create, view, and edit records in all the finance modules including Sales Order, Invoices, Purchase Order. We're also

    • Seriously - Create multiple contacts for leads, (With Company as lead) Zoho CRM

      In Zoho CRM, considering a comapny as a lead, you need us to allow addition of more than one contact. Currently the Lead Section is missing "Add contact" feature which is available in "Accounts". When you know that a particular lead can have multiple

    • can I link a contacts to multiple accounts

      can I link a contacts to multiple accounts

    • Rotate an Image in Workdrive Image Editor

      I don't know if I'm just missing something, but my team needs a way to rotate images in Workdrive and save them at that new orientation. For example one of our ground crew members will take photos of job sites vertically (9:16) on his phone and upload

    • Free webinar! Digitize recruitment and onboarding with Zoho Sign and Zoho Recruit

      Hello, Tired of being buried in onboarding paperwork? With the integration between Zoho Sign and Zoho Recruit, a powerful applicant tracking system, you can digitize and streamline the entire recruitment and onboarding process, all from one platform.

    • 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

    • is it possible to add more than one Whatsapp Phone Number to be integrated to Zoho CRM?

      so I have successfully added one Whatsapp number like this from this User Interface it seems I can't add a new Whatsapp Number. I need to add a new Whatsapp Number so I can control the lead assignment if a chat sent to Whatsapp Phone Number 1 then assign

    • Open Activities view.

      I really like the new views for the open and closed activities inside the deals. But when you are in the tab view instead of the column view you can only complete and edit the open activity there isn't the 3 dot option to be able to delete the activ

    • Potentially Outdated and Vulnerable Chromium Engine Installed by Ulaa Browser Installer

      I just installed Ulaa Browser a few minutes ago. Whats My Browser page shows I am using an outdated Chromium engine meaning I might be vulnerable for security exploits that might have got fixed in the new version.

    • Potentially hardcoded list of Browsers to import from (after Ulaa Setup)

      I have just installed Ulaa Browser and found that the list of browser to import data is potentially hardcoded ones rather than looking at the system. I do not have FF, IE and Edge is not my default itself. I would appreciated if Ulaa detected my browsers

    • Fat Download of Ulaa Browser

      I just observed that Ulaa Browser is offering an one-capsule big download. These days it is a custom to offer a small bootstrap downloader and based on user customization options an appropriate download completes. And this is particularly common with

    • Remember all the ways we've posted?

      The world celebrates World Postal Day in 2025 with the theme “#PostForPeople: Local Service. Global Reach". The story of the “post” is a story of human connection itself, evolving from simple handwritten notes carried over long distances to instant digital

    • From Layout to Code: Finding Custom Field IDs in Zoho Projects.

      Hello everyone! Ever found yourself wondering how to get the API names and IDs of custom fields in Zoho Projects while working on custom functions? Here’s a simple and effective way to do it! This method makes it super easy to locate the right field details

    • How to notify all members on any updates to zoho crm?

      Hi, I am using the free version of zoho CRM and currently seeing this will work for our company. We are a small company and wanted to be more informed about all the changes in zoho.   1. How do I set notifications that go to the team for any and all changes made in Zoho. At this point, we'd rather be over-informed than under-informed. 2. Create a custom field (or rename an unused field) to be able to capture any "Product Feature Requests" from customers or prospects we're talking to. I have anyone

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

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

    • Billing frequency is not displayed correctly.

      Hello There is an issue while displaying the billing frequency on a subscription quote. I am able to activate the subscription details and get this lovely overview: If I am adding a Plan which I charge quarterly, first of all it should be possible to

    • Next Page