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Tobias HaggeTobias Hagge 

Trigger from Opportunity to Contact

I would like to do a trigger on Opportunities to rollup values into the Contact object. We don't use ContactRoles. There is a lookup fields to the relevant Contact on the Account, but the following gives a null ID.
Map<String, Opportunity> opportunityMap = new Map<String, Opportunity>();
		for(Opportunity opportunity: opportunities)
			String id = opportunity.Account.Contact__c;
			System.debug ('*****' + id);
			if(id != null)
				opportunityMap.put(opportunity.Account.Contact__c, opportunity);
Any ideas?
Best Answer chosen by Tobias Hagge
Himanshu ParasharHimanshu Parashar
Hi Tobias,

Relationship fields are not available inside trigger.new so you need to query them in sepeate SOQL.

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P.S. If my answer helps you to solve your problem please mark it as best answer.