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!



    • Sticky Posts

    • Kaizen #198: Using Client Script for Custom Validation in Blueprint

      Nearing 200th Kaizen Post – 1 More to the Big Two-Oh-Oh! Do you have any questions, suggestions, or topics you would like us to cover in future posts? Your insights and suggestions help us shape future content and make this series better for everyone.

    • Kaizen #226: Using ZRC in Client Script

      Hello everyone! Welcome to another week of Kaizen. In today's post, lets see what is ZRC (Zoho Request Client) and how we can use ZRC methods in Client Script to get inputs from a Salesperson and update the Lead status with a single button click. In this

    • Kaizen #222 - Client Script Support for Notes Related List

      Hello everyone! Welcome to another week of Kaizen. The final Kaizen post of the year 2025 is here! With the new Client Script support for the Notes Related List, you can validate, enrich, and manage notes across modules. In this post, we’ll explore how

    • Kaizen #217 - Actions APIs : Tasks

      Welcome to another week of Kaizen! In last week's post we discussed Email Notifications APIs which act as the link between your Workflow automations and you. We have discussed how Zylker Cloud Services uses Email Notifications API in their custom dashboard.

    • Kaizen #216 - Actions APIs : Email Notifications

      Welcome to another week of Kaizen! For the last three weeks, we have been discussing Zylker's workflows. We successfully updated a dormant workflow, built a new one from the ground up and more. But our work is not finished—these automated processes are

    • Recent Topics

    • What's new in Zoho Sheet: Simplify data entry and collaboration

      Hello, Zoho Sheet community! Last year, our team was focused on research and development so we could deliver updates that enhance your spreadsheet experience. This year, we’re excited to deliver those enhancements—but we'll be rolling them out incrementally

    • Zoho Creator Developer Console | Improved Distribution and Lifecycle Management for apps

      Hello everyone, We're excited to introduce new enhancements now in the Zoho Creator Developer Console. These updates strengthen private app distribution through licensing controls and extend environment support across all installed apps, helping teams

    • [Webinar] Solving business challenges- Handling the challenge of transitioning to Zoho Writer from legacy tools

      Moving to Zoho Writer is a great way to consolidate your business tools and become more agile. With multiple accessibility modes, no-code automation, and extensive integration with business apps and content platforms, Zoho Writer helps solve your organization's

    • Feature Request - Gift Cards or Gift Voucher Capability in Zoho Commerce

      Hi Zoho Commerce team, I'm comming accross more and more retail businesses who sell gift cards. As there is currently no way to manage this in Zoho Commerce, it is a blocker to addoption. This is particularly popular in Europe and North America. I recently

    • Highlight a candidate who is "off limits"

      Hello: Is there a way to highlight a candidate who is "off limits"?  I would like to have the ability to make certain candidate and / or Client records highlighted in RED or something like that.   This would be used for example when we may have placed a candidate somewhere and we want everyone in our company to quickly and easily see that they are off limits.  The same would apply when we want to put a client or former client off limits so no one recruits out of there. How can this be done? Cheers,

    • Closing off tasks automatically based on project status

      Is there a way to close off all open tasks when a project is set as Cancelled?

    • [Free webinar] Understanding connections and datasources 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,

    • Bridge the Gap Between your Service and Finance Teams

      In field service, the most expensive distance isn’t the drive to a customer’s home—it’s the gap between a finished job and a paid invoice. Zoho FSM leverages the power of Zoho Invoice to handle and manage billing operations. It enables you to: Instantly

    • Direct URL to "View Record"

      I would like to create a button (Deluge Script) to jump to the "view record" without passing by the record menu, but I can not aford to find the right url. I don't want the "view record" as a single page. I want the "view record" in the application like the picture below: Thanks in advance for your help

    • Live Chat for user

      Hi everyone, I’m new to Zoho Creator and wanted to ask if it’s possible to add a live chat option for all logged-in portal users so they can chat internally. I’m trying to create a customer portal similar to a service desk, but for vehicle breakdowns,

    • SalesIQ Chat Owner to CRM Lead Owner Mapping

      There is no proper mapping between the SalesIQ chat owner and the CRM lead owner. When a chat is assigned to an agent, the lead created in CRM is often assigned to a different user, forcing admins to manually change ownership every time. This creates

    • Product line search in quotes

      Is there a way to change the search setting when you add a product line to a quote. We have created a field in products called 'Part Number' and I would like when I'm adding a product line to the quote that I can search on that field. At the moment it only searches on product description. In products I can search on the 'Part Number' field Any help welcome.

    • 🚀 WorkDrive 6.0 (Phase 1): Empowering Teams with Content Intelligence, Automation, Accessibility, and Control

      Hello, everyone! WorkDrive continues to evolve from a robust file management solution into an intelligent, secure, and connected content collaboration platform for modern businesses. Our goal remains unchanged: to simplify teamwork, strengthen data security,

    • Storage Limits

      Hello, What is the storage limitations for each user on professional edition?  Thanks, Mekki

    • Zoho Recruit Community Meetup - London 🇬🇧

      Hello Recruiters! We’re excited to announce that the Zoho Recruit team is coming to the UK for an in-person Zoho User Group (ZUG) Meetup in London! This is your chance to connect with fellow Zoho users, learn from experts, and walk away with actionable

    • Power Pivot and Data Modeling functionality in Zoho Sheet

      When will MS Excel functionalities like Power Pivot and Data Modeling functionalities be available in Zoho Sheet?

    • How do teams manage meeting follow-ups across Zoho tools?

      We’re using Zoho tools for collaboration and tracking, but managing meeting notes, action items, and follow-ups across teams is still challenging. Curious how others are handling this within Zoho workflows. Are there best practices or integrations that

    • Global Search placement in the new UI

      Having a hard time with the global search placement in the UI redesign. Surely I can't be the only one. Previously global search placement was perfect. A bar at the top/center of the page. Exactly where you would expect it to be. Since the new UI has

    • What's New - January 2026 | Zoho Backstage

      Welcome to 2026! If you thought last year was big, buckle up. We’re stepping into this year with a singular focus: unimaginable growth, elite scalability, and performance benchmarks that leave the old ways of event management in the rearview mirror. As

    • Cliq on your mobile phone

      Some of the employees in my company get their cliq on their mobile phones but it will not let them answer the call. The employee has to go to their laptop to access it. 

    • Bulk Delete Messages in Cliq

      Isn't it possible to bulk delete messages in Cliq? I have them delivered to me as notifications from another service but most of them need to be deleted as not of value. I get dozens of them per day, and deleting them is already difficult is the "Delete"

    • stock movement report by each transaction for each item

      Dear Sir we are using zoho inventory for foodstuff and we lack the transaction report which clearly shows movement of an item from Opening balance of the month to Goods received in, Supplier return out, Invoice out, Sales return In, Transfer out and Transfer

    • Select the task view on the board in the Zoho Connect iPhone app

      Hello. How do I select the task view on the board in the Zoho Connect iPhone app? The Android app has this functionality.

    • Unable to change Company Logo

      Hi Guys, I have an issue where I've uploaded a Company image in Gif format and the logo has now got a black background whereas the logo is supposed to be black not the background. I didn't think it would be an issue so I created a PNG version to upload

    • Metadata API Access to Functions

      I think it would be incredibly helpful to have api access to every function's code. Our team primarily uses deluge functions to update fields across modules according to business logic. I would like to create a visual dependancy model for our CRM, but

    • Historical Sales Info - Blend with Finance Invoice Line Items, Access in CRM and Desk

      My company has been using Zoho One since 2021, with sales data going back through 2020. However, we have been in business much longer, and we have historical sales information that we want to have at our fingertips when talking with customers (usually

    • Introducing Record Category in CRM: Group options to see record status at a glance.

      Release update: Currently available for CN, JP, and AU DCs (all paid editions). It will be made available to other DCs by mid-March. Hello everyone, We are pleased to introduce Record Category in Zoho CRM - a new capability where the user can get an overview

    • Change Last Name to not required in Leads

      I would like to upload 500 target companies as leads but I don't yet have contact people for them. Can you enable the option for me to turn this requirement off to need a Second Name? Moderation update (10-Jun-23): As we explore potential solutions for

    • Service disruption in Zoho Cliq (EU Region) – February 9, 2026

      Hello everyone, We’d like to inform you about a brief service disruption that affected Zoho Cliq users in the EU region earlier today. The issue has been resolved, and all services are now operating normally. Summary On February 9, 2026, Zoho Cliq experienced

    • Spotlight series #26 - Build slides with visual clarity using Diagram

      Hello all! The feature in the spotlight this month is Diagram. Let's say you are a part of a project kickoff meeting and your teammate starts explaining the project life cycle like this: "First we ideate, then we create an initial prototype and share

    • Client scripts for Zoho Books ?

      Good day everyone, I am looking for a way to be able to interact with the Quotes and Invoices as they are being created. Think of it like Zoho client script in Zoho CRM. But for the life of me I dont see a way to do this. The issue with having function

    • Uplifted homepage experience

      Editions: All editions. Release Note: Available in CA and SA DCs (Standard, Professional). Availability update (17th February 2026): The feature has been enabled for the following DCs: All editions in the CA and SA DC | Free, Standard and Professional

    • Unable to produce monthly P&L reports for previous years

      My company just migrated to Books this year. We have 5+ years financial data and need to generate a monthly P&L for 2019 and a monthly P&L YTD for 2020. The latter is easy, but I'm VERY surprised to learn that default reports in Zoho Books cannot create

    • Crossbeam

      Does anyone use Crossbeam with their Zoho CRM? I'm looking for a way to import Crossbeam partner leads into Zoho CRM. If so: - What's your experience been like? - Are you able to automatically import Crossbeam leads > Zoho CRM? How? - What doesn't work

    • Access forms within a form

      I have multiple forms that I would like to create access to for users within one form. Example: I have forms A, B, C, D. I would like to create a form with the links to forms A, B, C, & D. That way we can send one link and then the user can select the

    • WorkDrive issues with Windows Explorer Not Responding

      We are using WorkDrive to collaborate on editing video content. We have a lot of files and quite a few are a few gigs. Recently anytime I try and work with the files Explorer freezes for a couple minutes whether it's dragging the files into Premiere or

    • Issues with Actions By Zoho Flow

      Hi, I have a workflow that fires when a deal reaches a stage. This then sends out a contract for the client to sign. I have connected this up through Actions by Zoho Flow. Unfortunately this fails to send out. I have tracked it down to the date fields.

    • Fill Mail Merge document up with subform fields of an Inventory module record being in the Related List

      Hi, I try to insert subform fields from an inventory module record being on the Related List of another inventory module record into a Mail Merge template without success. For example: we use ratecards in licensing and this ratecard items are available

    • Enhancements for Currencies in Zoho CRM: Automatic exchange rate updates, options to update record exchange rates, and more

      The multi-currency feature helps you track currencies region-wise. This can apply to Sales, CTC, or any other currency-related data. You can record amounts in a customer’s local currency, while the CRM automatically converts them to your home currency

    • Better use of contacts

      Zoho inventory has the ability to add multiple contacts to customers. However Zoho inventory doesn't currently provide a way to link a contact to objects like sales orders. This means that while you can tell what company has placed a sales order you can't

    • Next Page