diff --git a/addons/mail/models/mail_composer_mixin.py b/addons/mail/models/mail_composer_mixin.py
index 55813c51ba2..91375fb1271 100644
--- a/addons/mail/models/mail_composer_mixin.py
+++ b/addons/mail/models/mail_composer_mixin.py
@@ -21,9 +21,9 @@ class MailComposerMixin(models.AbstractModel):
     _description = 'Mail Composer Mixin'
 
     # Content
-    subject = fields.Char('Subject', compute='_compute_subject', readonly=False, store=True)
+    subject = fields.Char('Subject', compute='_compute_subject', readonly=False, store=True, compute_sudo=False)
     body = fields.Html(
-        'Contents', compute='_compute_body', readonly=False, store=True,
+        'Contents', compute='_compute_body', readonly=False, store=True, compute_sudo=False,
         render_engine='qweb', render_options={'post_process': True}, sanitize=False)
     body_has_template_value = fields.Boolean(
         'Body content is the same as the template',
diff --git a/addons/sale/tests/__init__.py b/addons/sale/tests/__init__.py
index c74eb1449a6..91de5b7b2eb 100644
--- a/addons/sale/tests/__init__.py
+++ b/addons/sale/tests/__init__.py
@@ -13,6 +13,7 @@ from . import test_reinvoice
 from . import test_sale_flow
 from . import test_sale_onboarding
 from . import test_sale_order
+from . import test_sale_order_cancel
 from . import test_sale_prices
 from . import test_sale_product_attribute_value_config
 from . import test_sale_refund
diff --git a/addons/sale/tests/test_sale_order_cancel.py b/addons/sale/tests/test_sale_order_cancel.py
new file mode 100644
index 00000000000..34db1380d75
--- /dev/null
+++ b/addons/sale/tests/test_sale_order_cancel.py
@@ -0,0 +1,46 @@
+# -*- coding: utf-8 -*-
+# Part of Odoo. See LICENSE file for full copyright and licensing details.
+from odoo.tests.common import users
+
+from odoo.addons.sale.tests.common import SaleCommon
+from odoo.addons.sales_team.tests.common import TestSalesCommon
+
+
+class TestSaleOrderCancel(SaleCommon, TestSalesCommon):
+    @classmethod
+    def setUpClass(cls):
+        super().setUpClass()
+        cls.template = cls.env.ref('sale.mail_template_sale_cancellation')
+        cls.template.write({
+            'subject': 'I can see {{ len(object.partner_id.sale_order_ids) }} order(s)',
+            'body_html': 'I can see <t t-out="len(object.partner_id.sale_order_ids)"/> order(s)',
+        })
+
+        cls.partner = cls.env['res.partner'].create({'name': 'foo'})
+
+        cls.manager_order, cls.salesman_order = cls.env['sale.order'].create([
+            {'partner_id': cls.partner.id, 'user_id': cls.user_sales_manager.id},
+            {'partner_id': cls.partner.id, 'user_id': cls.user_sales_salesman.id}
+        ])
+        # Invalidate the cache, e.g. to clear the computation of partner.sale_order_ids
+        cls.env.invalidate_all()
+
+    @users('user_sales_salesman')
+    def test_salesman_record_rules(self):
+        cancel = self.env['sale.order.cancel'].create({
+            'template_id': self.template.id,
+            'order_id': self.salesman_order.id,
+        })
+
+        self.assertEqual(cancel.subject, 'I can see 1 order(s)')
+        self.assertEqual(cancel.body, 'I can see 1 order(s)')
+
+    @users('user_sales_manager')
+    def test_manager_record_rules(self):
+        cancel = self.env['sale.order.cancel'].create({
+            'template_id': self.template.id,
+            'order_id': self.manager_order.id,
+        })
+
+        self.assertEqual(cancel.subject, 'I can see 2 order(s)')
+        self.assertEqual(cancel.body, 'I can see 2 order(s)')
diff --git a/addons/sale/wizard/sale_order_cancel.py b/addons/sale/wizard/sale_order_cancel.py
index 82bc4f61381..9c2c102ac73 100644
--- a/addons/sale/wizard/sale_order_cancel.py
+++ b/addons/sale/wizard/sale_order_cancel.py
@@ -52,7 +52,7 @@ class SaleOrderCancel(models.TransientModel):
 
     @api.depends('order_id')
     def _compute_subject(self):
-        for wizard_su in self.filtered('template_id').sudo():
+        for wizard_su in self.filtered('template_id'):
             wizard_su.subject = wizard_su.template_id._render_field(
                 'subject',
                 [wizard_su.order_id.id],
@@ -62,7 +62,7 @@ class SaleOrderCancel(models.TransientModel):
 
     @api.depends('order_id')
     def _compute_body(self):
-        for wizard_su in self.filtered('template_id').sudo():
+        for wizard_su in self.filtered('template_id'):
             wizard_su.body = wizard_su.template_id._render_field(
                 'body_html',
                 [wizard_su.order_id.id],