In what order are rules and data instances applied for a connector?

The correct answer reflects the sequence in which rules and data instances are applied when a connector is being executed in Pega.

When a connector is invoked, the system first interacts with the Data Page or Activity to gather or prepare the necessary data for the connector call. This is critical because the Data Page ensures that data is either fetched from a source or generated dynamically and is ready for processing.

After the Data Page or Activity, the system processes the Connect rule. This rule defines how to reach the external system and is crucial for the actual communication with that system.

Following the Connect rule, the Mapping rule is applied. Mapping rules are used to translate the data between the Pega system and the external service. This ensures that the correct data format is used for both sending and receiving information during the connector call.

Finally, the Data Transform is executed. Data Transforms allow you to manipulate the data that is passed in and out of the connector, giving you the ability to structure or modify the data as needed after the connector interaction.

This order is essential for ensuring that each part of the data handling and transformation workflow is executed in the right context, facilitating effective communication with external systems while ensuring data integrity and compatibility through mapping and transforming rules.