Get Related List Record Count

Use this wire adapter to get the RelatedList record count.

 This code example fetches the record count for a related list.

• parentRecordId—(Required) The ID of the parent record that you want to get related lists for, like an Account ID.
• relatedListId—(Required) The API name of a related list object such as Contacts, Opportunities, or Cases.

HTML

<template>

    <lightning-card title="getRelatedListCount">

        <div class="slds-var-p-around_medium">

          <template if:true={responseData}>

            <div>No of opportunities in account related list - {responseData.count}</div>

          </template>

        </div>

      </lightning-card>

</template>

JS

import { LightningElement,wire} from 'lwc';

import {getRelatedListCount} from 'lightning/uiRelatedListApi';

export default class GetReleatedListCount extends LightningElement {

    responseData;

    error;

    @wire(getRelatedListCount, {

      parentRecordId:'0010I00002Zq6IMQAZ', // AccountId

      relatedListId:'Opportunities' //RelatedList object Name

    })listInfo({error, data}){

      if(data){

         this.responseData = data;

         this.error = undefined;

      }

      if(error){

        this.error = error;

        this.responseData = undefined;

      }

    }

  }

 

XML

<?xml version="1.0" encoding="UTF-8"?>

<LightningComponentBundle xmlns="http://soap.sforce.com/2006/04/metadata">

    <apiVersion>54.0</apiVersion>

    <isExposed>true</isExposed>

    <targets>

         <target>lightning__RecordPage</target>

    </targets>

</LightningComponentBundle>

RESULT