Which two objects do not support triggers?

The correct answer, indicating that Account Forecast Adjustments (AFA) does not support triggers, is based on the understanding of how certain objects function within Salesforce, particularly in the context of the Manufacturing Cloud.

Triggers in Salesforce are used to execute custom actions before or after changes are made to Salesforce records. However, not all objects in Salesforce allow for triggers. Account Forecast Adjustments (AFA) is designed primarily for the purpose of making adjustments to forecasts without supporting the complexity of triggers, as its functionality focuses on data manipulation rather than dynamic processing that triggers would necessitate. This simplifies the handling of adjustments and maintains data integrity.

In contrast, other objects like Account Forecast (AF), Account Product Period Forecast (APPF), and Account Product Forecast (APF) are built to support various operations where triggers may be beneficial. These objects facilitate more complex interactions where business logic can come into play, making triggers essential for managing events related to forecasts and products. Therefore, recognizing the specific nature and roles of the AFA object provides clarity on why it does not support triggers.