@@ -63,6 +63,7 @@ Validation Constraints Reference
 constraints/Bic
 constraints/Isbn
 constraints/Issn
+constraints/Isin
 
 constraints/AtLeastOneOf
 constraints/Sequentially

@@ -0,0 +1,99 @@
+Isin
+====
+
+Validates that a value is a valid
+`International Securities Identification Number (ISIN)`_.
+
+========== ===================================================================
+Applies to :ref:`property or method <validation-property-target>`
+Options - `groups`_
+- `message`_
+- `payload`_
+Class :class:`Symfony\\Component\\Validator\\Constraints\\Isin`
+Validator :class:`Symfony\\Component\\Validator\\Constraints\\IsinValidator`
+========== ===================================================================
+
+Basic Usage
+-----------
+
+.. configuration-block::
+
+.. code-block:: php-annotations
+
+// src/Entity/UnitAccount.php
+namespace App\Entity;
+
+use Symfony\Component\Validator\Constraints as Assert;
+
+class UnitAccount
+{
+/**
+* @Assert\Isin
+*/
+protected $isin;
+}
+
+ .. code-block:: yaml
+
+# config/validator/validation.yaml
+App\Entity\UnitAccount:
+properties:
+isin:
+- Isin: ~
+
+ .. code-block:: xml
+
+<!-- config/validator/validation.xml -->
+<?xml version="1.0" encoding="UTF-8" ?>
+<constraint-mapping xmlns="http://symfony.com/schema/dic/constraint-mapping"
+xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+xsi:schemaLocation="http://symfony.com/schema/dic/constraint-mapping https://symfony.com/schema/dic/constraint-mapping/constraint-mapping-1.0.xsd">
+
+<class name="App\Entity\UnitAccount">
+<property name="isin">
+<constraint name="Isin"/>
+</property>
+</class>
+</constraint-mapping>
+
+ .. code-block:: php
+
+// src/Entity/UnitAccount.php
+namespace App\Entity;
+
+use Symfony\Component\Validator\Constraints as Assert;
+use Symfony\Component\Validator\Mapping\ClassMetadata;
+
+class UnitAccount
+{
+public static function loadValidatorMetadata(ClassMetadata $metadata)
+{
+$metadata->addPropertyConstraint('isin', new Assert\Isin());
+}
+}
+
+.. include:: /reference/constraints/_empty-values-are-valid.rst.inc
+
+Options
+-------
+
+.. include:: /reference/constraints/_groups-option.rst.inc
+
+message
+~~~~~~~
+
+**type**: ``string`` default: ``This value is not a valid International Securities Identification Number (ISIN).``
+
+The message shown if the given value is not a valid ISIN.
+
+You can use the following parameters in this message:
+
+=============== ==============================================================
+Parameter Description
+=============== ==============================================================
+``{{ value }}`` The current (invalid) value
+=============== ==============================================================
+
+.. include:: /reference/constraints/_payload-option.rst.inc
+
+.. _`International Securities Identification Number (ISIN)`: https://en.wikipedia.org/wiki/International_Securities_Identification_Number

@@ -81,6 +81,7 @@ Financial and other Number Constraints
 * :doc:`Iban </reference/constraints/Iban>`
 * :doc:`Isbn </reference/constraints/Isbn>`
 * :doc:`Issn </reference/constraints/Issn>`
+* :doc:`Isin </reference/constraints/Isin>`
 
 Other Constraints
 ~~~~~~~~~~~~~~~~~