The purpose of the AcknowledgeDebitTransferIST is to enable an application to request specific DebitTransferIST information from another business application module. The response to the AcknowledgeDebitTransferIST is the AcknowledgeDebitTransferIST. Is where the information that the BOD message carries is provided, in this case AcknowledgeDebitTransferIST. The information consists of a Verb and one or more Nouns. The verb (Acknowledge) indicates the action to be performed on the Noun (DebitTransferIST).