The Generic Wires ISO STP Layer refers to the return or reversal of a wire transfer (funds transfer) that has been processed through the ISO 20022 standard.

In simple words, it is a wire transfer (compliant with the ISO 20022 standard) was originally sent out, but for some reason, the transaction needs to be reversed, refunded, or returned to the sender.

This topic contains the following sub-topics:

• Outbound Return
  This topic explains the details of the outbound return. It refers to a process where a payment such as a wire transfer, international payment, or another type of financial transaction, that was initially sent out of the system or a financial institution is reversed or returned.
• Outbound Return Processing
  This topic explains the steps that are applicable for the return transaction processing of a settled inbound transaction are covered in this topic.
• Outbound Reject
  Outbound Reject refers to the process where a payment message that was initially intended to be sent to an external system is rejected before it is fully processed or transmitted.
• Outbound Reject Processing
  Outbound Reject Processing refers to handling of payment transactions that have been rejected before they were successfully processed or transmitted to external systems.