Bill-to-PO Matching is available for ApprovalMax Organisations under one of the supported subscription plans:
ApprovalMax trial Organisations connected to Xero (during the free 14-day trial period)
ApprovalMax Advanced plan
ApprovalMax Premium plan
Please note: Since 1 April 2023, the Matching feature in ApprovalMax is no longer supported for Organisations on a Xero Standard plan.