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RazaRaza 

what is trigger execution process?

I am the beginner in salesforce.
Please help me.
What is trigger execution?
Raj VakatiRaj Vakati
Apex triggers enable you to perform custom actions before or after changes to Salesforce records, such as insertions, updates, or deletions.

A trigger is Apex code that executes before or after the following types of operations:
insert
update
delete
merge
upsert
undelete

https://developer.salesforce.com/docs/atlas.en-us.apexcode.meta/apexcode/apex_triggers.htm

Refer this link for execution order 

https://developer.salesforce.com/docs/atlas.en-us.apexcode.meta/apexcode/apex_triggers_order_of_execution.htm
 
Amit Chaudhary 8Amit Chaudhary 8
Please check below post for same
1) https://developer.salesforce.com/docs/atlas.en-us.apexcode.meta/apexcode/apex_triggers_order_of_execution.htm

Let us know if this will help you
Shane James 13Shane James 13
Salesforce Apex can be invoked by triggers, which enables you to perform or take any of the custom or pre-defined action when any changes occur in the Salesforce records. These operations can be insertion, deletion or updating of any record.