All gifts in a gift batch are processed and all gifts are returned with the same authorization code of Y000000. These gifts are not processed in IATS.
When creating EFT transactions in batch, you are required to select a merchant account to process the credit cards. Each merchant account has an option to use a 'Live' or Demo' processing mode. Ensure the 'Live' process mode is selected for the merchant account being used to process credit cards in batch.