Trigger to count number of Contacts with an account 

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Hello and welcome to Programming Made Easy. In this video we would be discussing more on Triggers. In the Previous video we talked about sibling trigger, how to create it and the best practices involved. In this video we would be discussing more on triggers and the trigger for today is to count the total contacts associated with an account in salesforce.
Trigger to count number of contacts associated with an account,
Display the total number of contacts on account detail page,
Count number of contacts on accounts using Trigger ,
How do I find the number of contacts associated with an account in Salesforce?
Count the Contacts in the related list of Account ,
Salesforce | How can we count number of contacts ,
How to use trigger to count number of contacts associated ,
Salesforce Apex: How to Track the Number of Contacts,
Trigger to update number of contacts associated with account,
Salesforce: Trigger to count total no of contacts in an account ,
Account Contact Trigger Scenario,
Trigger scenario(when account address is updated related contact address also updates)