Final Processing (Collectors/Queues) 
You use this function to initiate final processing of closed collector sequences. The system checks whether the clearing agreement is locked when final processing is initiated.
Depending on the check results, the system can clear the payment items by using an alternative clearing agreement or by processing payment items individually. If clearing is not possible, the system sends a message with an error code to Exception Control. For more information about error handling, see Exception Control (FS-PE-EH).
During final processing, the system:
Generates one or more outgoing payment orders
Moves collected payment items to an outgoing payment order
Sets the collector sequence to a final status
A payment order associated with a collector is set to final status if no further processing is possible (for example, the payment order is rejected) or necessary (incoming processing is completed) in Payment Engine. In this case, all payment items assigned to the payment order have been processed, final correspondence has been triggered, and the payment order and clearing items have been handed over to Output Manager. Depending on the configuration, the payment order is available for archiving.
Integration
Before you can use the Final Processing function, you use the Assign Payment Items to Collector/Queue and Close Collector/Queue functions to process the corresponding payment items assigned to a collector or queue.
The payment items are forwarded over proxy to the account management system for posting simulation and prenotification or for posting in the case of internal payment items. The account management system sends a positive response (posting, posting simulation or reservation) or a negative response.
Prerequisites
Payment items are assigned to a collector or a queue. For more information, see Assign Payment Items to Collector/Queue.
The collector or queue is closed. For more information, see Close Collector/Queue.
The conditions for processing are defined in the clearing agreement. For more information, see Setting Up Queues and Collectors.
The clearing agreement is not locked before processing of the corresponding payment items starts. For more information, see Clearing Agreement.
Payment Engine is connected to an account management system. For more information, see Connection to an Account Management System.
You have mapped the error codes of the account management system to the error codes used in Payment Engine and specified the relevant error ID used in Exception Handling in Customizing for Payment Engine under
Posting Interfaces 
DM Proxy [or] BCA Proxy Response 
.
Features
You can initiate final processing of a collector or a queue to generate either outgoing payment orders or payment information in order to post payments to accounts administered by a connected account management system.
Activities
To initiate final processing of collectors and queues manually, on the SAP Easy Access screen, choose
Payment Engine Clearing Manage Collectors and Queues (transaction /PE1/CP_COLL).To initiate final processing of queues or collectors automatically, on the SAP Easy Access screen, choose
Payment Engine Periodic Processing Processes Execute Processes (transaction /PE1/POLLER).