Install the plugin

Learn how to install and configure the JTL Shop 5 plugin.

Before you begin

JTL system requirements
Basic integration requirements from Unzer
Minimum PHP version: 7.4
PHP extensions:
- ext-json
- ext-curl
Minimum JTL Shop version: JTL Shop 5.0.0
To avoid rounding errors when submitting floating point numbers to the API, we recommend that you set the following value in your php.ini, which selects an improved algorithm for rounding such numbers.

```php
// php.ini
  ; When floats & doubles are serialized store serialize_precision significant
  ; digits after the floating point. The default value ensures that when floats
  ; are decoded with unserialize, the data will remain the same.
  serialize_precision = -1
```

Step 1: Get the plugin from the JTL Extension store

Go to the JTL Extension store and download the latest release.
Install the plugin when the online store is running.
1. Upload the plugin from the shop, version 5.x into the \plugins directory.
  The upload is only available in the unpacked form. (File archives, such as *.zip or *.tgz, are not supported)
2. Start the installation: In the shop in the back end, go to Plug-in manager > Available.
  The installation runs automatically.

Step 2: Configure your plugin environment

To configure the payment methods, go to Administration > Payment methods.
Set up your payment methods.
To change or review the general plugin configuration, go to Plug-ins > Installed plug-ins > Solution 360 Unzer Payments, and then Settings.

For a detailed list of all the plugin requirements and installation steps, go to Unzer Zahlungsarten JTL-shop 5.

Field	Description
Private Key	Enter your private key that you received from Unzer Insights
Public Key	Enter your public key that you received from Unzer Insights
Merchant ID for the Insight Portal	Enter your Merchant ID to access your Unzer Insights account directly. You can find your Merchant ID in Unzer Insights: `https://insights.unzer.com/merchant/_{Merchant-ID}_/dashboard`