Create a Apex Trigger on Account to Update the Associated Contact Account Name Null Whenever Account Record is Updated in Salesforce | trigger to update account name of contact whenever account record is updated

Hey guys, today in this post we are going to learn about How to Update the Associated Contact Account Name is Null Whenever Account Record is Updated in Salesforce Apex Trigger.

Real time scenarios:- Write a trigger on Account and update associated contact Account Name is Null Whenever Account record is Updated.

Don’t forget to check out:- Write a Apex trigger to Add the Contact First Name and Last Name to Associated Account Custom Field Whenever the Contact inserted or Updated in Salesforce Click Here For More Information

Files we used in this post example:-

lookupAccountNull.apxt	Apex Class Trigger	It will be fired whenever Account Record is updated
Parent Cusotm Object:- Account	Parent Object (Account)	Trigger on Parent Object (Account) and updaed the Associted Contact Account Name Null
Child Object:- Contact	Child Object (Contact)	It is child object and associated with Account Object

Final Output

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Step 1:- Apex Class Trigger : lookupAccountNull.apxt

From Developer Console >> File >> New >> Apex Trigger

lookupAccountNull.apxt [Apex Class Trigger]

   TRIGGER lookupAccountNull ON Account (BEFORE INSERT, BEFORE UPDATE, after INSERT, after UPDATE) {

    List<Account> AccList =NEW List<Account>();

    Map<Id, Account> accMap=NEW Map<Id, Account>();

    List<Contact> conAc=NEW List<Contact>();

```
 
```
```
    IF(TRIGGER.isBefore){
```

        system.debug('trigger event before');

```
        AccList=TRIGGER.new;
```
```
    }ELSE IF(TRIGGER.isAfter){
```

        system.debug('trigger event after');

```
        IF(TRIGGER.isUpdate){
```
```
          AccList=TRIGGER.new;
```

          system.debug('AccList ' + AccList);

```
            FOR(Account acc:AccList){
```

               FOR(Contact c1:[SELECT Id, Name, FirstName, LastName, AccountId FROM Contact WHERE AccountId=:acc.Id]){

                   system.debug('c1' + c1);

```
                   c1.AccountId=NULL;
```
```
                  conAc.add(c1);
```
```
               }    
```
```
            }
```
```
            UPDATE conAc;
```
```
        }
```
```
 
```
```
    }
```
```
}
```

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FAQ (Frequently Asked Questions)

Can we perform DML operation in before trigger?

Before Trigger: Before triggers are used to perform the logic on the same object and specifically we cannot use the DML operation (Insert, update, delete) on these triggers. These triggers fired before the data saved into the database.

How do you test Apex triggers?

In the Developer Console, click File | New | Apex Trigger. Enter AccountDeletion for the trigger name, and then select Account for the sObject. Click Submit. Replace the default code with the following.

Can we write DML statement in trigger?

Before triggers are used to perform the logic on the same object and it triggers fired before the data saved into the database. For DML operation it required to commit with data base. So, we cannot use the DML operation on these triggers. As per Order of execution before trigger fire and then after trigger fire.

Vijay Kumar

Hi, This is Vijay Kumar behind the admin and founder of w3web.net. I am a senior software developer and working in MNC company from more than 8 years. I am great fan of technology, configuration, customization & development. Apart of this, I love to write about Blogging in spare time, Working on Mobile & Web application development, Salesforce lightning, Salesforce LWC and Salesforce Integration development in full time. [Read full bio] | | The Sitemap where you can find all published post on w3web.net