Suppose you are having this situation:

- Account is the parent of opportunity
- and Opportunity is the parent of Suggestion
- Now we want to update the same value from Suggestion to Account how we will do that with Trigger. Because Account and Suggestion are not having direct relationship.
- I have created these fields for testing purpose.
A Textfield on Account object named grandparent__c
A Textfield on Suggestion object named SuggestionField__c - Now the below trigger i have written and it is performing the output:

Source:Trailblazer Community
Watch below video for more details:
Please share if more optimized code we can write for this.
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