Plugin Development Flashcards

Which interface must a Dataverse plugin class implement?

Answer: IPlugin

Every Dataverse plugin must implement the IPlugin interface, which exposes the Execute method.

What is the purpose of the ITracingService in plugin development?

Answer: Writing diagnostic messages retrievable via Plugin Trace Log

ITracingService.Trace() writes messages to the Plugin Trace Log, which developers can view in the maker portal for debugging.

A plugin registered in Sandbox (isolation mode) attempts to call an external web service. What happens?

Answer: The call always fails with a SecurityException

Sandbox-isolated plugins cannot make outbound network calls; they throw a SecurityException when external HTTP access is attempted.

When registering a plugin step, what does setting the Execution Order to 1 versus 2 control?

Answer: The relative firing sequence when multiple plugins target the same event

Execution Order determines the sequence in which multiple plugins registered on the same message/stage fire, with lower numbers firing first.

Which method on IOrganizationService should you use to run multiple operations atomically within a plugin?

Answer: Execute with an ExecuteTransactionRequest

ExecuteTransactionRequest wraps multiple operations so they all succeed or roll back together within a single transaction.

What entity snapshot is available in the plugin execution context when a plugin fires on the Update message?

Answer: Both PreEntityImages and PostEntityImages depending on registration

Pre- and post-entity images are both available for Update, but only if explicitly registered on the plugin step before deployment.

A developer wants to prevent a record from being deleted based on business logic inside a plugin. What is the correct approach?

Answer: Throw an InvalidPluginExecutionException

Throwing InvalidPluginExecutionException aborts the operation and surfaces the message to the user as a business error.