Hi Judy,
Currently, when importing invoices, they can only be imported with a payment type of Regular. M3 is currently working on an enhancement that will allow the invoice to be imported with the payment type that is set as the Default Payment Type for the Vendor associated with the invoice. We do not yet have a verified ETA on this enhancement, but our Development teams are actively working on it so we would expect it to be included in a release within the next few months. We will update this thread when this option is made available within Accounting Core.
Thank you,
M3 Support