diff --git a/account_spread_cost_revenue/models/account_move_line.py b/account_spread_cost_revenue/models/account_move_line.py
index e3618331..804136ae 100644
--- a/account_spread_cost_revenue/models/account_move_line.py
+++ b/account_spread_cost_revenue/models/account_move_line.py
@@ -103,12 +103,20 @@ class AccountMoveLine(models.Model):
         if reconciled_lines:
             msg = _("Cannot reconcile entries that are already reconciled:\n")
             for line in reconciled_lines:
-                msg += msg_line % (line.id, line.name, line.account_id.code)
+                msg += msg_line % {
+                    "line_id": line.id,
+                    "line_name": line.name,
+                    "account_code": line.account_id.code,
+                }
             raise ValidationError(msg)
         if len(self.mapped("account_id").ids) > 1:
             msg = _("Some entries are not from the same account:\n")
             for line in self:
-                msg += msg_line % (line.id, line.name, line.account_id.code)
+                msg += msg_line % {
+                    "line_id": line.id,
+                    "line_name": line.name,
+                    "account_code": line.account_id.code,
+                }
             raise ValidationError(msg)
 
     def create_auto_spread(self):
@@ -148,9 +156,10 @@ class AccountMoveLine(models.Model):
             elif len(template) > 1:
                 raise UserError(
                     _(
-                        "Too many auto spread templates ({}) matched with the "
-                        "invoice line, {}"
-                    ).format(len(template), line.display_name)
+                        "Too many auto spread templates (%(len_template)s) matched with the "
+                        "invoice line, %(line_name)s"
+                    )
+                    % {"len_template": len(template), "line_name": line.display_name}
                 )
             # Found auto spread template for this invoice line, create it
             wizard = self.env["account.spread.invoice.line.link.wizard"].new(
diff --git a/account_spread_cost_revenue/models/account_spread.py b/account_spread_cost_revenue/models/account_spread.py
index f8c61e92..8f8b6ec7 100644
--- a/account_spread_cost_revenue/models/account_spread.py
+++ b/account_spread_cost_revenue/models/account_spread.py
@@ -520,19 +520,21 @@ class AccountSpread(models.Model):
                 "<a href=# data-oe-model=account.move "
                 "data-oe-id=%d>%s</a>" % (spread.invoice_id.id, _("Invoice"))
             )
-            msg_body = _("Unlinked invoice line '{}' (view {}).").format(
-                spread.invoice_line_id.name,
-                inv_link,
-            )
+            msg_body = _(
+                "Unlinked invoice line '%(spread_line_name)s' (view %(inv_link)s)."
+            ) % {
+                "spread_line_name": spread.invoice_line_id.name,
+                "inv_link": inv_link,
+            }
             spread.message_post(body=msg_body)
             spread_link = (
                 "<a href=# data-oe-model=account.spread "
                 "data-oe-id=%d>%s</a>" % (spread.id, _("Spread"))
             )
-            msg_body = _("Unlinked '{}' (invoice line {}).").format(
-                spread_link,
-                spread.invoice_line_id.name,
-            )
+            msg_body = _("Unlinked '%(spread_link)s' (invoice line %(inv_line)s).") % {
+                "spread_link": spread_link,
+                "inv_line": spread.invoice_line_id.name,
+            }
             spread.invoice_id.message_post(body=msg_body)
 
     def unlink(self):
diff --git a/account_spread_cost_revenue/models/account_spread_template.py b/account_spread_cost_revenue/models/account_spread_template.py
index be3d4bab..2fddd86c 100644
--- a/account_spread_cost_revenue/models/account_spread_template.py
+++ b/account_spread_cost_revenue/models/account_spread_template.py
@@ -169,9 +169,7 @@ class AccountSpreadTemplate(models.Model):
             )
         if results:
             raise UserError(
-                _("Followings are duplicated combinations,\n\n{}").format(
-                    "\n".join(results)
-                )
+                _("Followings are duplicated combinations,\n\n%s") % "\n".join(results)
             )