diff --git a/docs/de-de/invoice.md b/docs/de-de/invoice.md
index f1b5c23..4d23135 100644
--- a/docs/de-de/invoice.md
+++ b/docs/de-de/invoice.md
@@ -93,6 +93,14 @@ $items = [
 $sevdeskApi->invoice()->create($customerId, $items, $parameters);
 ```
 
+## Zahlungserinnerung erstellen
+
+Um eine Zahlungserinnerung zu erstellen, verwende die Funktion `createReminder()` und übergebe die SevDesk `invoiceId`.
+
+```php
+$sevdeskApi->invoice()->createReminder($invoiceId);
+```
+
 ## Rechnung herunterladen
 
 Um eine Rechnung runterzuladen, rufe die Funktion `download()` auf mit der Rechnungs ID `$invoiceId` als Parameter.
diff --git a/docs/invoice.md b/docs/invoice.md
index 61daf91..32166c9 100644
--- a/docs/invoice.md
+++ b/docs/invoice.md
@@ -92,6 +92,15 @@ $items = [
 $sevdeskApi->invoice()->create($customerId, $items, $parameters);
 ```
 
+## Create Reminder
+
+To create an invoice use the `createReminder()` function and pass the SevDesk `invoiceId`.
+
+```php
+$sevdeskApi->invoice()->createReminder($invoiceId);
+```
+
+
 ## Download Invoice
 
 To download pdf file of the giving `$invoiceId`.
diff --git a/src/Api/Invoice.php b/src/Api/Invoice.php
index 3f20adb..bda53b2 100644
--- a/src/Api/Invoice.php
+++ b/src/Api/Invoice.php
@@ -157,6 +157,24 @@ public function create($contactId, $items, array $parameters = []): SevInvoice
         return $sevInvoice;
     }
 
+    // =========================== create reminder ====================================
+
+    /**
+     * Create invoice reminder.
+     *
+     * @param $invoiceId
+     * @return array
+     * @throws Exception
+     */
+    public function createReminder($invoiceId): array
+    {
+        return $this->_post(Routes::CREATE_REMINDER, [
+            'invoice' => [
+                'id' => $invoiceId,
+                "objectName" => "Invoice"
+            ]
+        ]);
+    }
 
     // =======================================================================
 
diff --git a/src/Api/Utils/Routes.php b/src/Api/Utils/Routes.php
index ce3393e..99d0185 100644
--- a/src/Api/Utils/Routes.php
+++ b/src/Api/Utils/Routes.php
@@ -20,6 +20,7 @@ class Routes
     const INVOICE = 'Invoice';
     const SEV_USER = 'SevUser';
     const CREATE_INVOICE = self::INVOICE . '/Factory/saveInvoice';
+    const CREATE_REMINDER = self::INVOICE . '/Factory/createInvoiceReminder';
     const STATIC_COUNTRY = 'StaticCountry';
     const SEQUENCE = 'SevSequence/Factory/getByType';
 }