diff --git a/account_payment_purchase/models/account_invoice.py b/account_payment_purchase/models/account_invoice.py
index 774849038..41cd2eac7 100644
--- a/account_payment_purchase/models/account_invoice.py
+++ b/account_payment_purchase/models/account_invoice.py
@@ -10,8 +10,16 @@ class AccountMove(models.Model):
 
     @api.onchange("purchase_vendor_bill_id", "purchase_id")
     def _onchange_purchase_auto_complete(self):
-        new_mode = self.purchase_id.payment_mode_id.id or False
-        new_bank = self.purchase_id.supplier_partner_bank_id.id or False
+
+        new_mode = (
+            self.purchase_vendor_bill_id.purchase_order_id.payment_mode_id.id
+            or self.purchase_id.payment_mode_id.id
+        )
+        new_bank = (
+            self.purchase_vendor_bill_id.purchase_order_id.supplier_partner_bank_id.id
+            or self.purchase_id.supplier_partner_bank_id.id
+        )
+
         res = super()._onchange_purchase_auto_complete() or {}
         if self.payment_mode_id and new_mode and self.payment_mode_id.id != new_mode:
             res["warning"] = {