diff --git a/account_usability_akretion/models/account_move.py b/account_usability_akretion/models/account_move.py
index c8c00ed..38317b8 100644
--- a/account_usability_akretion/models/account_move.py
+++ b/account_usability_akretion/models/account_move.py
@@ -90,6 +90,16 @@ class AccountMove(models.Model):
             res.append((old_re[0], name))
         return res
 
+    def _reverse_moves(self, default_values_list=None, cancel=False):
+        reverse_moves = super()._reverse_moves(
+            default_values_list=default_values_list, cancel=cancel)
+        # In the simple scenario 1 invoice -> 1 refund, we add a message in the chatter
+        # of the invoice and in the chatter of the refund
+        if len(self) == 1 and len(reverse_moves) == 1:
+            self.message_post(body=_("A reverse journal entry <a href=# data-oe-model=account.move data-oe-id=%d>%s</a> has been generated.") % (reverse_moves.id, reverse_moves.display_name))
+            reverse_moves.message_post(body=_("This journal entry has been generated as the reverse of <a href=# data-oe-model=account.move data-oe-id=%d>%s</a>.") % (self.id, self.display_name))
+        return reverse_moves
+
     def delete_lines_qty_zero(self):
         lines = self.env['account.move.line'].search([
             ('display_type', '=', 'product'),