While creation of Account if Phone is null then throw an error message, Here we are applying a custom validation in apex trigger

Hey guys, today in this post we are going to learn about Write Apex Trigger While creation of Account if Phone is null then throw an error message, Here we are applying a custom validation in apex trigger in Salesforce.

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Create Apex Trigger →

Step 1:- Create Apex Controller : AccountTrigger.apxt

SFDX:Create Apex Trigger>> New >> AccountTrigger.apxt

AccountTrigger.apxt [Apex Trigger]

  TRIGGER AccountTrigger ON Account (BEFORE INSERT, after INSERT) {

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

        accountTriggerHandler.checkPhoneAcc(TRIGGER.new);

```
    }
```
```
 
```
```
}
```

Create Apex Controller →

Step 2:- Create Apex Controller : accountTriggerHandler.apxc

SFDX:Create Apex Controller>> New >> accountTriggerHandler.apxc

accountTriggerHandler.apxc [Apex Controller]

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```
public class accountTriggerHandler {
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```
 
```

    public static void checkPhoneAcc(List<Account> accList){

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```
```
        FOR(Account acc:accList){
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```
            IF(acc.Phone == NULL){
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               acc.Phone.addError('Pnone can not be null, please fill the phone number');

```
            }
```
```
        }
```
```
    }
```
```
 
```
```
}
```

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FAQ (Frequently Asked Questions)

What is the trigger before update in Salesforce?

Before Trigger: This type of trigger in Salesforce is used either to update or validate the values of a record before they can be saved into the database. So, basically, the before trigger validates the record first and then saves it.

Which action can be performed in a before-insert trigger?

Before triggers are used to perform a task before a record is inserted, updated, or deleted in Salesforce, these are used to update or validate record values before they are saved to the database.

Can I write a future call in trigger in Salesforce?

Calling future methods is similar to calling any other method in code. Of course, in this case, you may to take arguments in your function so that trigger can pass relevant field information that you can use to write logic in your trigger.

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