RE: Dynamics GP EFT Canada file formats
The table below will help to understand the ISO 20022 and the Msg IDs you are referring to:
Message Name Msg ID (XML Schema) Version
CoreCreditTransferInitiationV01 pain.001.001.01 1 Payables
CustomerCreditTransferInitiationV02 pain.001.001.02 2 Payables
CustomerCreditTransferInitiationV03 pain.001.001.03 3 Payables
CustomerDirectDebitInitiationV02 pain.008.001.02 3 Receivables
EFT for Payables functionality was added to Dynamics GP in version 10 and EFT for receivables in 2010.
Dynamics GP out of the box offers the EFT Format Type 'ISO 20022 - Domestic, Low-Value', which is PAIN.001.001.01
PAIN.001.001.02, PAIN.001.001.03 and PAIN.008.001.02 are not defined in Dynamics GP, you could build them from scratch or outsource the creation of the file formats. Another option is to ask your bank, they might already have these formats or other clients using Dynamics GP. The file formats can be easily exported\imported into GP using the EFT File Format Maintenance window.
Coincidently I am working in a project which involve building PAIN.008.001.02.
I hope the above information helps and good luck.