This is how you publish Dext cost items as Paid Bills to Xero after their approval in ApprovalMax
Select "Invoice" as the Publish To destination (Manage ->Connections ->Integrations):
Select a Payment Method with a stored Bank Account (Lists ->Payment methods):
Please note: If you select a valid Payment Method, it will result in a Paid Bill being created once the final approval for the request has been collected in ApprovalMax even if the status Paid has not been set.
This is how your cost item should look in Dext:
This is how such published cost items look in ApprovalMax:
Once all approvals have been collected in ApprovalMax, the Bill will be published to Xero as Paid: