Exam PL-400 topic 4 question 28 discussion

Actual exam question from Microsoft's PL-400

Question #: 28
Topic #: 4

A company uses Microsoft Dataverse rollup fields to calculate insurance exposure and risk profiles for customers.

Users report that the system does not update values for the rollup fields when new insurance policies are written.

You need to recalculate the value of the rollup fields immediately after a policy is created.

What should you do?

A. Create new calculated fields on the customer entity for insurance exposure and risk. Configure the formula to calculate the sum of values from policy records.
B. Create a plug-in that uses the update method for the rollup field. Configure a step on the Create event for the policy entity for this plug-in.
C. Create new fields on the customer entity for insurance exposure and risk. Write a plug-in that is triggered whenever a new policy is created.
D. Create new fields on the customer entity for insurance exposure and risk. Write a workflow process that is triggered when a new policy record is created to calculate the sum of values from policy records.

Show Suggested Answer

Suggested Answer: B 🗳️

by chiari_do at May 13, 2023, 5:07 p.m.

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Kovval

2 months ago

Selected Answer: C

It's C - chat gpt

upvoted 1 times

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Juan0414

5 months ago

Selected Answer: C

B is not the answer because it says "Create a plug-in that uses the UPDATE method for the ROLLUP field". That statement is wrong because using the standard update method on rollup fields will generate an error because they are read-only fields (https://learn.microsoft.com/en-us/dotnet/api/microsoft.xrm.sdk.iorganizationservice.update?view=dataverse-sdk-latest#remarks) So, the only possible answer is C as it is the only other option that mentions a plug-in and that is the way that we can ensure a synchronous immediate recalculation of the field (And we assume that this plug-in uses CalculateRollupFieldRequest)

upvoted 2 times

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