Write a trigger to update parent account phone number whenever the contact phone number is updated using trigger handler and helper class in Salesforce | How to update Account phone from Contact Phone based on lookup relationship in Salesforce

Hey guys, today in this post we are going to learn about How to Write a trigger to update parent account phone number when ever the contact phone number is updated using trigger handler and helper class in Salesforce

Real time scenarios:- Write a trigger on Contact to update the parent Account Phone number when ever the Contact Phone is updated through trigger handler and helper class in Salesforce.

Files we used in this post example

contactTrigger.apxt

Apex Class Trigger

It will be fired when ever contact phone number is updated.

contactTriggerHandler.apxc

Apex Class Trigger Handler

Apex handler trigger to update account phone number with contact phone number when ever contact is updated.

Parent Object:- Account
Fields:- Phone
Child Object:- Contact
Fields:- Phone, AccountId (Lookup)

Trigger to updated parent Account from Contact based on lookup relation AccountId.

Final Output → To get source code live demo..

Other related post that would you like to learn.

Create Apex Class Trigger

Step 5:- Create Apex Class : contactTrigger.apxt

From Developer Console ➡ File ➡ New ➡ Apex Class

contactTrigger.apxt [Apex Class Controller]

Create Apex Trigger Handler and Helper Class

Step 5:- Create Apex Class : contactTriggerHandler.apxc

From Developer Console ➡ File ➡ New ➡ Apex Class

contactTriggerHandler.apxc [Apex Class Controller]

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FAQ (Frequently Asked Questions)

Final Output → To get source code live demo..

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Originally published at https://www.w3web.net on August 8, 2021.