Exam PL-400 Topic 4 Question 245 Discussion
Actual exam question for Microsoft's PL-400 exam
Question #: 245
Topic #: 4
Question #: 245
Topic #: 4
You are developing a Power Platform app for a school. The school plans to use the app to gather information about classes and students.
You must design a plug-in for the app. You must store data about students in the Contacts table and store data about classes in a custom table.
You need to select the stage in the event pipeline for each function.
Which stages should you use? To answer, drag the appropriate plug-in stages to the correct functions. Each plug-in stage may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.
NOTE: Each correct selection is worth one point.
You must design a plug-in for the app. You must store data about students in the Contacts table and store data about classes in a custom table.
You need to select the stage in the event pipeline for each function.
Which stages should you use? To answer, drag the appropriate plug-in stages to the correct functions. Each plug-in stage may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.
NOTE: Each correct selection is worth one point.
Suggested Answer:
Explanation
Graphical user interface, text, application Description automatically generated
Box 1: PreValidation
For the initial operation, this stage will occur before the main system operation.
This provides an opportunity to include logic to cancel the operation before the database transaction.
Box 2: PreOperation
Occurs before the main system operation and within the database transaction.
If you want to change any values for an entity included in the message, you should do it here.
Avoid cancelling an operation here. Canceling will trigger a rollback of the transaction and have significant performance impact.
Box 3: PostOperation
Occurs after the main system operation and within the database transaction.
Use this stage to modify any properties of the message before it is returned to the caller.
Reference:
https://docs.microsoft.com/en-us/powerapps/developer/data-platform/event-framework
by Ferdinand at Oct 15, 2026, 10:58 AM
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