Exam Certified Heroku Architecture Designer topic 1 question 80 discussion

Actual exam question from Salesforce's Certified Heroku Architecture Designer

Question #: 20
Topic #: 1

[All Certified Heroku Architecture Designer Questions]

A client wants to use Heroku Connect to sync data bidirectionally between a Salesforce org and a Heroku Postgres database.
In this scenario, which two are advantages to setting a custom External Identifier field in the Heroku Connect mapping? (Choose two.)

A. External IDs simplify the mapping of polymorphic relationships in the Salesforce org.
B. External IDs improve speed when inserting multiple related objects.
C. External IDs prevent the creation of orphaned duplicates in Heroku Postgres.
D. External IDs are required to enable bidirectional synchronization.

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Suggested Answer: CD 🗳️

by Parkaboy at Aug. 30, 2020, 2:12 p.m.

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JWGrace

7 months, 3 weeks ago

C& D is the correct answer.

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Parkaboy

11 months, 1 week ago

I would go B and D, https://devcenter.heroku.com/articles/writing-data-to-salesforce-with-heroku-connect, "When synchronizing changes from Salesforce, Heroku Connect will try to match records by their Salesforce ID (if present) and will fallback to the Unique External Identifier if it is configured and populated. However, if no Unique External Identifier is configured or populated and there is no matching Salesforce ID, then Connect will create a new record in Postgres (in this case, a duplicate record)" I understand then that an External Identifier is not required for bidirectional synchronization but recommended.

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