Once there are transactions in a waiting state, the bulking can be triggered by either issuing a
command from the OAC or according to a schedule in the Payment Bulking Calendar Group. Once the
bulking is triggered, all the transactions are collected and then divided into the batches based on
their Sender information containing in the original inbound messages.
Transaction Bulking Events shows the complete list of events involved in the bulking process
when 5 transactions in the waiting state are collected for bulking. Figure 1. Transaction Bulking Events
Transaction Bulking Outbound Batch List shows the list of batches created as part of the
bulking process. Two batches were created, each for a different sender. Figure 2. Transaction Bulking Outbound Batch List
Pain.001 Multiple Priorities Inbound Batch Transaction Counter shows the relationship between
the outbound batch and the original two inbound batches. Figure 3. Pain.001 Multiple Priorities Inbound Batch Transaction Counter
Relationship Between Outbound and Inbound Transmissions shows the relationships between the
outbound Physical Transmission and the original inbound Physical Transmissions. Figure 4. Relationship Between Outbound and Inbound Transmissions
Inbound Transaction States shows one of the transactions that was bulked into the outbound
message and the series of states it transitioned to from its creation to completion. Figure 5. Inbound Transaction States
