diff --git a/example/Transaction/example-authorize-retry.php b/example/Transaction/example-authorize-retry.php
index c7112fc..67bff56 100644
--- a/example/Transaction/example-authorize-retry.php
+++ b/example/Transaction/example-authorize-retry.php
@@ -11,11 +11,12 @@
 
 $token = 'xxx';
 
-// The request ID you received after the first authorize request fails with a Behavior of RETRY or RETRY_LATER
+// The request ID which is generated by our merchant-system to retry the authorize request
+// after the first attempt returned a Behavior of RETRY or RETRY_LATER
 
 $requestId = 'your_request_id';
 
-// retryIndicator is set to 1 to indicate that this is a retry (see SaferpayJson/Request/RequestConfig.php)
+// retryIndicator is set to 1 or more to indicate that this is a retry (see SaferpayJson/Request/RequestConfig.php)
 
 $retryIndicator = 1;
 
@@ -23,19 +24,21 @@
 // Step 1:
 // Prepare the authorize request
 // See https://saferpay.github.io/jsonapi/#Payment_v1_Transaction_Authorize
-//
-// Note: The RequestConfig is created with a requestId and retryIndicator to indicate that this is a retry
-// (see https://docs.saferpay.com/home/integration-guide/licences-and-interfaces/error-handling#the-requestid-and-retryindicator)
 
 $requestConfig = new RequestConfig(
     $apiKey,
     $apiSecret,
     $customerId,
-    true,
-    $requestId,
-    $retryIndicator
+    true
 );
 
+// Note: The RequestConfig contains the optional fields requestId and retryIndicator to indicate that this is a retry
+// or for debugging purposes
+// (see https://docs.saferpay.com/home/integration-guide/licences-and-interfaces/error-handling#the-requestid-and-retryindicator)
+
+$requestConfig->setRequestId($requestId);
+$requestConfig->setRetryIndicator($retryIndicator);
+
 // -----------------------------
 // Step 2:
 // Create the request with required data
diff --git a/lib/SaferpayJson/Request/RequestConfig.php b/lib/SaferpayJson/Request/RequestConfig.php
index 1267312..3fa8849 100644
--- a/lib/SaferpayJson/Request/RequestConfig.php
+++ b/lib/SaferpayJson/Request/RequestConfig.php
@@ -17,33 +17,19 @@ final class RequestConfig
     private string $customerId;
     private bool $test;
     private ?Client $client = null;
-    private ?string $requestId;
-    private int $retryIndicator;
+    private ?string $requestId = null;
+    private int $retryIndicator = self::MIN_RETRY_INDICATOR;
 
     public function __construct(
-        string  $apiKey,
-        string  $apiSecret,
-        string  $customerId,
-        bool    $test = false,
-        ?string $requestId = null,
-        int     $retryIndicator = 0
+        string $apiKey,
+        string $apiSecret,
+        string $customerId,
+        bool   $test = false
     ) {
         $this->apiKey = $apiKey;
         $this->apiSecret = $apiSecret;
         $this->customerId = $customerId;
         $this->test = $test;
-
-        if ($retryIndicator < self::MIN_RETRY_INDICATOR || $retryIndicator > self::MAX_RETRY_INDICATOR) {
-            throw new InvalidArgumentException('Retry indicator range: inclusive between '
-                . self::MIN_RETRY_INDICATOR . '  and ' . self::MAX_RETRY_INDICATOR);
-        }
-
-        if ($retryIndicator > self::MIN_RETRY_INDICATOR && $requestId === null) {
-            throw new InvalidArgumentException('Request id must be set if retry indicator is greater than 0');
-        }
-
-        $this->requestId = $requestId;
-        $this->retryIndicator = $retryIndicator;
     }
 
     public function getApiKey(): string
@@ -82,11 +68,30 @@ public function getClient(): Client
         return $this->client;
     }
 
+    public function setRequestId(?string $requestId): self
+    {
+        $this->requestId = $requestId;
+
+        return $this;
+    }
+
     public function getRequestId(): ?string
     {
         return $this->requestId;
     }
 
+    public function setRetryIndicator(int $retryIndicator): self
+    {
+        if ($retryIndicator < self::MIN_RETRY_INDICATOR || $retryIndicator > self::MAX_RETRY_INDICATOR) {
+            throw new InvalidArgumentException('Retry indicator range: inclusive between '
+                . self::MIN_RETRY_INDICATOR . '  and ' . self::MAX_RETRY_INDICATOR);
+        }
+
+        $this->retryIndicator = $retryIndicator;
+
+        return $this;
+    }
+
     public function getRetryIndicator(): int
     {
         return $this->retryIndicator;
diff --git a/tests/SaferpayJson/Tests/Request/CommonRequestTest.php b/tests/SaferpayJson/Tests/Request/CommonRequestTest.php
index 4539740..8b2d580 100644
--- a/tests/SaferpayJson/Tests/Request/CommonRequestTest.php
+++ b/tests/SaferpayJson/Tests/Request/CommonRequestTest.php
@@ -38,7 +38,6 @@ public function getRequestConfigValidationParams(): array
             'second try' => [uniqid(), RequestConfig::MIN_RETRY_INDICATOR + 1],
             'last try' => [uniqid(), RequestConfig::MAX_RETRY_INDICATOR],
             'try after all retries exceeded' => [uniqid(), RequestConfig::MAX_RETRY_INDICATOR + 1, InvalidArgumentException::class],
-            'retry without previous request id' => [null, RequestConfig::MAX_RETRY_INDICATOR, InvalidArgumentException::class],
         ];
     }
 
@@ -50,18 +49,20 @@ public function testRequestConfigValidation(
         int     $retryIndicator,
         ?string $expectedException = null): void
     {
-        if ($expectedException !== null) {
-            $this->expectException($expectedException, $requestId, $retryIndicator);
-        }
-
-        new RequestConfig(
+        $config = new RequestConfig(
             'apiKey',
             'apiSecret',
             'customerId',
-            false,
-            $requestId,
-            $retryIndicator
+            false
         );
+
+        if ($expectedException !== null) {
+            $this->expectException($expectedException, $requestId, $retryIndicator);
+        }
+
+        $config
+            ->setRequestId($requestId)
+            ->setRetryIndicator($retryIndicator);
     }
 
     public function doTestSuccessfulResponse(string $responseClass): void