diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5d2e1eb..8618381 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,7 @@ Latest
 ------
 
 ### Changes
+* [#62](https://github.com/cleverage/soap-process-bundle/issues/62) The bundle throws exceptions implementing `ProcessExceptionInterface` of the process bundle instead of raw SPL exceptions (as [cleverage/process-bundle#317](https://github.com/cleverage/process-bundle/issues/317)): new `Exception\UnexpectedValueException`, `Exception\InvalidArgumentException` and `Exception\RuntimeException`, extending the SPL exceptions thrown before (same messages, the existing `catch` keep working). Add tests.
 * [#60](https://github.com/cleverage/soap-process-bundle/issues/60) Composer: require PHP `^8.2` instead of `>=8.2` (PHP 9 is no longer accepted before being tested), remove the authorization of the `symfony/flex` plugin, which is not required (the CI installs it globally), as [cleverage/process-bundle#319](https://github.com/cleverage/process-bundle/issues/319).
 * [#55](https://github.com/cleverage/soap-process-bundle/issues/55) Define the public API (Symfony BC promise, as [cleverage/process-bundle#279](https://github.com/cleverage/process-bundle/issues/279)): `RequestTask`, `RequestTransformer`, `ClientRegistry` and `CleverAgeSoapProcessBundle` are marked `@final since 3.3`, they will be `final` in 4.0: extending them triggers a deprecation with the Symfony `DebugClassLoader`. `Client` (extended by the applications) and `MissingClientException` stay open. `CleverAgeSoapProcessExtension` and `RegisterClientsPass` are marked `@internal`.
 * [#54](https://github.com/cleverage/soap-process-bundle/issues/54) `CleverAgeSoapProcessExtension::findServices()` loads the service definition files with a glob pattern instead of a `Finder` (same files, as [cleverage/process-bundle#271](https://github.com/cleverage/process-bundle/issues/271)), `symfony/finder` is no longer required. Add tests.
diff --git a/src/Client/Client.php b/src/Client/Client.php
index 48f0ea8..a284b08 100644
--- a/src/Client/Client.php
+++ b/src/Client/Client.php
@@ -13,6 +13,8 @@
 
 namespace CleverAge\SoapProcessBundle\Client;
 
+use CleverAge\SoapProcessBundle\Exception\InvalidArgumentException;
+use CleverAge\SoapProcessBundle\Exception\UnexpectedValueException;
 use Psr\Log\LoggerInterface;
 
 /**
@@ -61,7 +63,7 @@ public function getLogger(): LoggerInterface
     public function getCode(): string
     {
         if ('' === $this->code || '0' === $this->code) {
-            throw new \UnexpectedValueException('Client code is not defined');
+            throw new UnexpectedValueException('Client code is not defined');
         }
 
         return $this->code;
@@ -187,7 +189,7 @@ public function call(string $method, array $input = []): mixed
     protected function doSoapCall(string $method, array $input = []): mixed
     {
         if (!$this->getSoapClient() instanceof \SoapClient) {
-            throw new \InvalidArgumentException('Soap client is not initialized');
+            throw new InvalidArgumentException('Soap client is not initialized');
         }
         try {
             $result = $this->getSoapClient()->__soapCall($method, $input, $this->getSoapOptions(), $this->getSoapHeaders());
diff --git a/src/Exception/InvalidArgumentException.php b/src/Exception/InvalidArgumentException.php
new file mode 100644
index 0000000..aedde38
--- /dev/null
+++ b/src/Exception/InvalidArgumentException.php
@@ -0,0 +1,23 @@
+<?php
+
+declare(strict_types=1);
+
+/*
+ * This file is part of the CleverAge/SoapProcessBundle package.
+ *
+ * Copyright (c) Clever-Age
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace CleverAge\SoapProcessBundle\Exception;
+
+use CleverAge\ProcessBundle\Exception\ProcessExceptionInterface;
+
+/**
+ * Thrown by the bundle, can be caught with the ProcessExceptionInterface of the process bundle.
+ */
+class InvalidArgumentException extends \InvalidArgumentException implements ProcessExceptionInterface
+{
+}
diff --git a/src/Exception/RuntimeException.php b/src/Exception/RuntimeException.php
new file mode 100644
index 0000000..9883aab
--- /dev/null
+++ b/src/Exception/RuntimeException.php
@@ -0,0 +1,23 @@
+<?php
+
+declare(strict_types=1);
+
+/*
+ * This file is part of the CleverAge/SoapProcessBundle package.
+ *
+ * Copyright (c) Clever-Age
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace CleverAge\SoapProcessBundle\Exception;
+
+use CleverAge\ProcessBundle\Exception\ProcessExceptionInterface;
+
+/**
+ * Thrown by the bundle, can be caught with the ProcessExceptionInterface of the process bundle.
+ */
+class RuntimeException extends \RuntimeException implements ProcessExceptionInterface
+{
+}
diff --git a/src/Exception/UnexpectedValueException.php b/src/Exception/UnexpectedValueException.php
new file mode 100644
index 0000000..2ee6419
--- /dev/null
+++ b/src/Exception/UnexpectedValueException.php
@@ -0,0 +1,23 @@
+<?php
+
+declare(strict_types=1);
+
+/*
+ * This file is part of the CleverAge/SoapProcessBundle package.
+ *
+ * Copyright (c) Clever-Age
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace CleverAge\SoapProcessBundle\Exception;
+
+use CleverAge\ProcessBundle\Exception\ProcessExceptionInterface;
+
+/**
+ * Thrown by the bundle, can be caught with the ProcessExceptionInterface of the process bundle.
+ */
+class UnexpectedValueException extends \UnexpectedValueException implements ProcessExceptionInterface
+{
+}
diff --git a/src/Registry/ClientRegistry.php b/src/Registry/ClientRegistry.php
index f928717..f7dc12a 100644
--- a/src/Registry/ClientRegistry.php
+++ b/src/Registry/ClientRegistry.php
@@ -15,6 +15,7 @@
 
 use CleverAge\SoapProcessBundle\Client\ClientInterface;
 use CleverAge\SoapProcessBundle\Exception\MissingClientException;
+use CleverAge\SoapProcessBundle\Exception\UnexpectedValueException;
 use Symfony\Contracts\Service\ServiceProviderInterface;
 
 /**
@@ -72,7 +73,7 @@ public function addClient(ClientInterface $client, ?string $serviceId = null): v
                 $message .= " by service \"{$definedBy}\", cannot register service \"{$serviceId}\"";
             }
 
-            throw new \UnexpectedValueException($message);
+            throw new UnexpectedValueException($message);
         }
         $this->clients[$code] = $client;
         $this->serviceIds[$code] = $serviceId;
@@ -106,10 +107,10 @@ public function getClient(string $code): ClientInterface
 
         $client = $this->locator->get($code);
         if (!$client instanceof ClientInterface) {
-            throw new \UnexpectedValueException(\sprintf('The service of the SOAP client "%s" must implement "%s".', $code, ClientInterface::class));
+            throw new UnexpectedValueException(\sprintf('The service of the SOAP client "%s" must implement "%s".', $code, ClientInterface::class));
         }
         if ($code !== $client->getCode()) {
-            throw new \UnexpectedValueException(\sprintf('The SOAP client "%s" is registered with the code "%s" but its getCode() method returns "%s": both must be the same.', $client::class, $code, $client->getCode()));
+            throw new UnexpectedValueException(\sprintf('The SOAP client "%s" is registered with the code "%s" but its getCode() method returns "%s": both must be the same.', $client::class, $code, $client->getCode()));
         }
 
         return $this->clients[$code] = $client;
diff --git a/src/Task/RequestTask.php b/src/Task/RequestTask.php
index ac8ca6c..c438c11 100644
--- a/src/Task/RequestTask.php
+++ b/src/Task/RequestTask.php
@@ -16,6 +16,8 @@
 use CleverAge\ProcessBundle\Model\AbstractConfigurableTask;
 use CleverAge\ProcessBundle\Model\ProcessState;
 use CleverAge\SoapProcessBundle\Client\SoapCallOptionsTrait;
+use CleverAge\SoapProcessBundle\Exception\RuntimeException;
+use CleverAge\SoapProcessBundle\Exception\UnexpectedValueException;
 use CleverAge\SoapProcessBundle\Registry\ClientRegistry;
 use Psr\Log\LoggerInterface;
 use Symfony\Component\OptionsResolver\OptionsResolver;
@@ -47,7 +49,7 @@ public function execute(ProcessState $state): void
 
         $input = $state->getInput() ?: [];
         if (!\is_array($input)) {
-            throw new \UnexpectedValueException(\sprintf('RequestTask expects an array or empty input, %s given', get_debug_type($input)));
+            throw new UnexpectedValueException(\sprintf('RequestTask expects an array or empty input, %s given', get_debug_type($input)));
         }
 
         try {
@@ -66,7 +68,7 @@ public function execute(ProcessState $state): void
 
             // The process manager applies the error strategy: the process fails with "stop", the error outputs
             // receive the task input with "skip"
-            throw new \RuntimeException(\sprintf("Soap call '%s' on client '%s' failed", $options['method'], $options['client']), 0, $e);
+            throw new RuntimeException(\sprintf("Soap call '%s' on client '%s' failed", $options['method'], $options['client']), 0, $e);
         }
 
         $state->setOutput($result);
diff --git a/src/Transformer/RequestTransformer.php b/src/Transformer/RequestTransformer.php
index 5680b52..201a900 100644
--- a/src/Transformer/RequestTransformer.php
+++ b/src/Transformer/RequestTransformer.php
@@ -15,6 +15,8 @@
 
 use CleverAge\ProcessBundle\Transformer\ConfigurableTransformerInterface;
 use CleverAge\SoapProcessBundle\Client\SoapCallOptionsTrait;
+use CleverAge\SoapProcessBundle\Exception\RuntimeException;
+use CleverAge\SoapProcessBundle\Exception\UnexpectedValueException;
 use CleverAge\SoapProcessBundle\Registry\ClientRegistry;
 use Symfony\Component\OptionsResolver\OptionsResolver;
 
@@ -42,7 +44,7 @@ public function __construct(protected ClientRegistry $registry)
     public function transform(mixed $value, array $options = []): mixed
     {
         if (!\is_array($value)) {
-            throw new \UnexpectedValueException('Expecting an array of value');
+            throw new UnexpectedValueException('Expecting an array of value');
         }
 
         $resolver = new OptionsResolver();
@@ -55,7 +57,7 @@ public function transform(mixed $value, array $options = []): mixed
         try {
             return $this->callWithSoapOptions($client, $options['method'], $value, $options['soap_call_options'], $options['soap_call_headers']);
         } catch (\SoapFault $e) {
-            throw new \RuntimeException(\sprintf("Soap call '%s' on client '%s' failed", $options['method'], $options['client']), 0, $e);
+            throw new RuntimeException(\sprintf("Soap call '%s' on client '%s' failed", $options['method'], $options['client']), 0, $e);
         }
     }
 
diff --git a/tests/Exception/SplExceptionsTest.php b/tests/Exception/SplExceptionsTest.php
new file mode 100644
index 0000000..48b3e78
--- /dev/null
+++ b/tests/Exception/SplExceptionsTest.php
@@ -0,0 +1,56 @@
+<?php
+
+declare(strict_types=1);
+
+/*
+ * This file is part of the CleverAge/SoapProcessBundle package.
+ *
+ * Copyright (c) Clever-Age
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace CleverAge\SoapProcessBundle\Tests\Exception;
+
+use CleverAge\ProcessBundle\Exception\ProcessExceptionInterface;
+use CleverAge\SoapProcessBundle\Exception\InvalidArgumentException;
+use CleverAge\SoapProcessBundle\Exception\RuntimeException;
+use CleverAge\SoapProcessBundle\Exception\UnexpectedValueException;
+use PHPUnit\Framework\Attributes\CoversClass;
+use PHPUnit\Framework\Attributes\DataProvider;
+use PHPUnit\Framework\TestCase;
+
+/**
+ * The exceptions thrown by the bundle can be caught as ProcessExceptionInterface, and still as the SPL exceptions they
+ * were before.
+ */
+#[CoversClass(UnexpectedValueException::class)]
+#[CoversClass(InvalidArgumentException::class)]
+#[CoversClass(RuntimeException::class)]
+class SplExceptionsTest extends TestCase
+{
+    /**
+     * @return iterable<string, array{class-string<\Throwable>, class-string<\Throwable>}>
+     */
+    public static function provideExceptions(): iterable
+    {
+        yield 'UnexpectedValueException' => [UnexpectedValueException::class, \UnexpectedValueException::class];
+        yield 'InvalidArgumentException' => [InvalidArgumentException::class, \InvalidArgumentException::class];
+        yield 'RuntimeException' => [RuntimeException::class, \RuntimeException::class];
+    }
+
+    /**
+     * @param class-string<\Throwable> $class
+     * @param class-string<\Throwable> $splClass
+     */
+    #[DataProvider('provideExceptions')]
+    public function testExtendsTheSplExceptionAndImplementsTheInterface(string $class, string $splClass): void
+    {
+        $exception = new $class('message', 12);
+
+        self::assertInstanceOf($splClass, $exception);
+        self::assertInstanceOf(ProcessExceptionInterface::class, $exception);
+        self::assertSame(['message', 12], [$exception->getMessage(), $exception->getCode()]);
+    }
+}