If you are submitting your PRAs using a third party software, you (and your software provider) should be guided by the relevant message specifications below:
PRA - ADM - Technical Guide System Interface File Specification (CSV)
PRA - ADM - Technical Guide IFTERA Message Specification (EDI)
PRA - ADM - Technical Guide XML Message Specification (XML)
PRA - ADM - Technical Guide APERAK (Response) Message Specification
PRA - ADM - Messaging - Due to browser and file compatibility issues, the XSD documentation will be provided to upon request.