The sent count is less than the upstream population. What are two reasons for this result? (Choose two.)

The discrepancy between the upstream population (initial target) and the final sent count in Adobe Campaign Classic is typically due to exclusions applied during the delivery analysis phase. Pressure typologies are rules designed to prevent over-solicitation by excluding recipients who have been contacted too frequently, thus reducing the final count. Similarly, recipients whose addresses are on the quarantine list due to previous delivery failures (e.g., hard bounces) are automatically excluded from the delivery, further lowering the number of messages sent compared to the initial target audience.

A. The upstream population did NOT include seeds. Seed addresses are added to the target audience for testing and validation; their absence would not decrease the sent count relative to the primary population.
D. The upstream population was too large. While a very large population can impact performance, its size is not a direct filtering criterion that would inherently cause the sent count to be lower.

1. Adobe Experience League - Campaign Classic v7 Documentation, "Pressure rules": This document explains how pressure rules work. It states, "Pressure rules are used to avoid over-soliciting a recipient. Depending on the settings, recipients will be excluded from the delivery if they have already been sent a certain number of deliveries..." This directly supports that applying pressure rules reduces the final sent count. (Found in Campaign Classic v7 > Delivery > About typology rules > Pressure rules).

2. Adobe Experience League - Campaign Classic v7 Documentation, "Quarantine management": This source details the quarantine mechanism. It specifies, "An address that is in quarantine will be excluded by default during delivery analysis and will not be targeted by the delivery." This confirms that quarantined recipients are removed from the send, causing the sent count to be lower than the initial population. (Found in Campaign Classic v7 > Delivery > Understanding delivery failures > Quarantine management).

3. Adobe Experience League - Campaign Classic v7 Documentation, "Delivery analysis": This section describes the steps before a delivery is sent. It notes, "During this phase, the target population is calculated, and the message content is prepared for each recipient... The delivery analysis logs show the number of messages to be sent after exclusions." This confirms that exclusions, such as those from typologies and quarantines, occur during analysis. (Found in Campaign Classic v7 > Delivery > Get started with deliveries > Steps for sending a delivery > Delivery analysis).