Exam PL-400 topic 4 question 20 discussion

D. Create a plug-in that uses the CalculateRollupFieldRequest method for the rollup field. Configure a step on the Create event for the policy entity for this plug-in. Option A is not correct because it would require additional fields and workflows which would make the solution complex. Option B is not correct because Mass Calculate Rollup Field job runs periodically and it wouldn't update immediately after the policy is created. Option C is not correct because the update method is used to update the values of an existing record and it wouldn't recalculate the value of the rollup field.

Correct!

Answer is D

D is correct

D is correct answer! By following this approach, you're directly controlling the recalculation process of the rollup fields using a custom plugin that's triggered immediately upon the creation of a policy record. This ensures that the rollup fields for insurance exposure and risk profiles are accurately calculated and updated for customers as soon as new policies are written. B is NOT correct. In Microsoft Dataverse, the "Mass Calculate Rollup Field" job is meant to PERIODICALLY recalculate the values of rollup fields for existing records, and it's not designed to be triggered by the creation of new records.

D should be

D imo. B is not correct -> Mass Calculate Rollup Field job runs periodically once every 12 h, and NOT immediately.

D should be it. B is wrong because you are calling to mass calculate that is a scheudeled process to update every roll up field. C could be but D is more precise as tell you the method to be used.

Correct Answer D

definitelly D

I agree with Northstar and have built a plugin once to achieve synchronous recalculation of the parents rollup whenever a child was created.

Should be D Rollup fields are read-only, you cannot update them using update request in plugin. https://docs.microsoft.com/en-us/dynamics365/customerengagement/on-premises/developer/calculated-rollup-attributes?view=op-9-1#common-elements-and-characteristics:~:text=characteristics%2C%20for%20example%3A-,They%E2%80%99re%20read%2Donly.,-They%E2%80%99re%20not%20specific However you can trigger the rollup calculation by using the CalculateRollUpFieldRequest https://docs.microsoft.com/en-us/dotnet/api/microsoft.crm.sdk.messages.calculaterollupfieldrequest?view=dataverse-sdk-latest

Guess is C

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