Whenever a New Account Record is created then needs to generate an associated Contact Record automatically triggers in Salesforce

 To create a Contact automatically whenever a new Account is created, you can write an Apex Trigger in Salesforce. Here's how to implement this functionality:

trigger CreateContactOnAccountInsert on Account (after insert) {

    List<Contact> contactsToInsert = new List<Contact>();

    for (Account acc : Trigger.new) {

        // Create a Contact record associated with the Account

        contactsToInsert.add(new Contact(

            FirstName = 'Default',

            LastName = acc.Name, // Using Account Name as the Contact's Last Name

            AccountId = acc.Id // Linking Contact to the Account

        ));

    }

    // Insert all new Contacts in bulk

    if (!contactsToInsert.isEmpty()) {

        insert contactsToInsert;

    }

}

Explanation of the Code

1. Trigger Event:

   • The trigger runs on the after insert event because we need the AccountId (generated only after the Account record is saved) to link the Contact to the Account.

2. Logic:

   • For every Account in the Trigger.new list, a new Contact is created with:
     • A default FirstName (you can customize this).
     • LastName as the Account’s Name.
     • AccountId to associate the Contact with the Account.

3. Bulk Handling:

• All new Contact records are stored in a List<Contact> and inserted in bulk to ensure efficient processing in case of bulk Account creation.

@isTest

private class CreateContactOnAccountInsertTest {

    @isTest

    static void testCreateContactOnAccountInsert() {

        // Create a new Account

        Account testAccount = new Account(

            Name = 'Test Account'

        );

        insert testAccount;

        // Query for the associated Contact

        Contact associatedContact = [SELECT FirstName, LastName, AccountId FROM Contact WHERE AccountId = :testAccount.Id];

        

        // Assert that the Contact is created and associated with the Account

        System.assertEquals('Default', associatedContact.FirstName, 'First Name should be Default');

        System.assertEquals('Test Account', associatedContact.LastName, 'Last Name should match Account Name');

        System.assertEquals(testAccount.Id, associatedContact.AccountId, 'AccountId should match');

    }

}