Why won't my simple Trigger fire?

Question

I want a custom Date field on Opportunity to be updated with the date of the related Calendar Event (owned by a specific Calendar every time) any time the event is created or updated. My trigger isn't throwing any errors, but I can't get any action to happen.

What could I be forgetting?

trigger EventServiceStartDateforOpp on Event (after insert, after update) {
List<Opportunity> opps = new List<Opportunity>{};
if (trigger.isInsert)
{
	for (Event t : trigger.new)
{
	datetime tiempo = t.StartDateTime;
	date d = Date.newInstance(tiempo.year(),tiempo.month(),tiempo.day());
	if (t.OwnerId == '02340000000WATv')
	{opps.add(new Opportunity(Id=t.WhatId, Service_Start_Date__c=d));
}}}}

Marko Lamot · Accepted Answer

That is because of "if (trigger.isInsert)"  statement.   Remove that if  - or extend it by if (trigger.isInsert || trigger.isupdate).

Marko Lamot · Answer

You are missing update call:   update opps;   btw: i would also check if event is for sure related to opportunity and only then include it in the update. Because, if it is not, you'll get error.

Why won't my simple Trigger fire?

Data Management

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