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Creating a trigger on Event to update an Event custom field with a value from Contact

I am trying to write a trigger on Event what will update a custom field on Event with a value from the Contact. (We want to capture the value in this field at the time of the call).    I thought that this would be fairly easy, but I am having difficulties.  Has anyone done something similar?


Any help would be greatly appreciated!




The below code might help you.


trigger UpdateContact on Event (before insert, before update) {
Contact c= [select Id, Name from Contact where id=:e.whoId];
e.CustomFeild__c = c.Name;


This is just a sample trigger. This will not work if you are doing bulk uploads. You need to enhance it.




Thank you so much!  I was making it much more complicated that it needed to be.