diff --git a/server_environment_ir_config_parameter/models/ir_config_parameter.py b/server_environment_ir_config_parameter/models/ir_config_parameter.py
index 541aafe..513d880 100644
--- a/server_environment_ir_config_parameter/models/ir_config_parameter.py
+++ b/server_environment_ir_config_parameter/models/ir_config_parameter.py
@@ -59,18 +59,18 @@ class IrConfigParameter(models.Model):
     def create(self, vals_list):
         for vals in vals_list:
             key = vals.get("key")
-            if serv_config.has_option(SECTION, key):
+            if key and serv_config.has_option(SECTION, key):
                 # enforce value from config file
-                vals = dict(vals, value=serv_config.get(SECTION, key))
+                vals.update(value=serv_config.get(SECTION, key))
         return super().create(vals_list)
 
     def write(self, vals):
         for rec in self:
-            key = vals.get("key") or rec.key
+            key = vals.get("key", rec.key)
             if serv_config.has_option(SECTION, key):
                 # enforce value from config file
                 newvals = dict(vals, value=serv_config.get(SECTION, key))
             else:
                 newvals = vals
-            super().write(newvals)
+            super(IrConfigParameter, rec).write(newvals)
         return True
diff --git a/server_environment_ir_config_parameter/tests/config_param_test.xml b/server_environment_ir_config_parameter/tests/config_param_test.xml
index 29d2a99..297a14e 100644
--- a/server_environment_ir_config_parameter/tests/config_param_test.xml
+++ b/server_environment_ir_config_parameter/tests/config_param_test.xml
@@ -3,4 +3,9 @@
         <field name="key">ircp_from_config</field>
         <field name="value">value_from_xml</field>
     </record>
+
+    <record model="ir.config_parameter" id="some_other_record_id">
+        <field name="key">other_ircp_from_config</field>
+        <field name="value">other_value_from_xml</field>
+    </record>
 </odoo>
diff --git a/server_environment_ir_config_parameter/tests/test_server_environment_ircp.py b/server_environment_ir_config_parameter/tests/test_server_environment_ircp.py
index b8e9485..867cea7 100644
--- a/server_environment_ir_config_parameter/tests/test_server_environment_ircp.py
+++ b/server_environment_ir_config_parameter/tests/test_server_environment_ircp.py
@@ -9,15 +9,22 @@ from odoo.addons.server_environment.tests.common import ServerEnvironmentCase
 
 from ..models import ir_config_parameter
 
+CONFIG = """
+    [ir.config_parameter]
+    ircp_from_config=config_value
+    other_ircp_from_config=other_config_value
+    ircp_without_record=config_value_without_record
+    other_ircp_without_record=other_config_value_without_record
+    ircp_empty=
+    mail.catchall.alias=my_alias
+"""
+
 
 class TestEnv(ServerEnvironmentCase):
     def setUp(self):
         super().setUp()
         self.ICP = self.env["ir.config_parameter"]
-        self.env_config = """[ir.config_parameter]
-ircp_from_config=config_value
-ircp_empty=
-mail.catchall.alias=my_alias"""
+        self.env_config = CONFIG
 
     def _load_xml(self, module, filepath):
         convert_file(
@@ -116,3 +123,47 @@ mail.catchall.alias=my_alias"""
             res = self.ICP.search([("key", "=", "mail.catchall.alias")])
             self.assertEqual(len(res), 1)
             self.assertEqual(res.value, "my_alias")
+
+    def test_write(self):
+        # there's a write override, test it here
+        self._load_xml(
+            "server_environment_ir_config_parameter", "tests/config_param_test.xml"
+        )
+        with self.load_config(
+            public=self.env_config, serv_config_class=ir_config_parameter
+        ):
+            ICP = self.ICP
+            icp1 = ICP.search([("key", "=", "ircp_from_config")])
+            self.assertEqual(icp1.value, "value_from_xml")
+            icp2 = ICP.search([("key", "=", "other_ircp_from_config")])
+            self.assertEqual(icp2.value, "other_value_from_xml")
+            # Ensures that each record has its own value at write
+            (icp1 | icp2).write({"value": "test"})
+            self.assertEqual(icp1.value, "config_value")
+            self.assertEqual(icp2.value, "other_config_value")
+            self.assertEqual(ICP.get_param(icp1.key), "config_value")
+            self.assertEqual(ICP.get_param(icp2.key), "other_config_value")
+
+    def test_create(self):
+        self._load_xml(
+            "server_environment_ir_config_parameter", "tests/config_param_test.xml"
+        )
+        with self.load_config(
+            public=self.env_config, serv_config_class=ir_config_parameter
+        ):
+            vals = [
+                {
+                    "key": "ircp_without_record",
+                    "value": "NOPE",
+                },
+                {
+                    "key": "other_ircp_without_record",
+                    "value": "NOPE",
+                },
+            ]
+            records = self.ICP.create(vals)
+            # Ensures each record has its own value at create
+            self.assertEqual(
+                records.mapped("value"),
+                ["config_value_without_record", "other_config_value_without_record"],
+            )