The "Approval required" email notification now contains a "This request has already been approved by" block to inform the current Approver accordingly.
The "Tax inclusive" status will now be handled properly for Purchase Orders created in Xero.
Please note: when a Purchase Order is created in Xero and sent to the customer, the tax status will most likely get changed to "Tax exclusive" and prices will be adapted automatically. This is Xero logic and cannot be configured in ApprovalMax: https://help.xero.com/Q_InvoiceTax