---
title: "Create a Self-Signed Certificate"
slug: "v5createaself-signedcertificate"
tags: ["Certificate Authority", "Generate Certificate", "Self-Signed ", "SSL Certificate"]
updated: 2026-05-06T02:30:08Z
published: 2026-05-06T02:30:08Z
---

> ## Documentation Index
> Fetch the complete documentation index at: https://help.12dsynergy.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Create a Self-Signed Certificate

Admin Content

> [!WARNING]
> The **12d Synergy Mobile App**is NOT compatible with a self-signed certificate. You must purchase a valid certificate from a trusted third-party Certificate Authority to use the **12d Synergy Mobile App**.

1. Log in to the server on which the certificate has to be installed.
2. In the **12d Synergy Administration** application, select the **System Settings** **tab > SSL Certificates tab > Create a Self-Signed Certificate tab**. ![](https://cdn.document360.io/36833d89-59e3-46a5-b491-e9aa1b524a85/Images/Documentation/v5createaself-signedcertificate-image-f1ishbpe.png)
3. Click the **Generate a Self-Signed Certificate**button. The **Generate a CSR** window is displayed. ![](https://cdn.document360.io/36833d89-59e3-46a5-b491-e9aa1b524a85/Images/Documentation/v5createaself-signedcertificate-image-uxqup3fb.png)
4. Enter all the details and click the **Generate** button. The**Certificate Password** window is displayed. ![](https://cdn.document360.io/36833d89-59e3-46a5-b491-e9aa1b524a85/Images/Documentation/v5createaself-signedcertificate-image-kbtnfgsj.png)
5. Enter a password to export the private key and click the **Set** button. The following prompt is displayed. ![](https://cdn.document360.io/36833d89-59e3-46a5-b491-e9aa1b524a85/Images/Documentation/v5createaself-signedcertificate-image-94k68a6u.png)
6. Click the **OK** button.

> [!WARNING]
> An error message might appear while importing the certificate using the 12d Synergy Administration application if the Service Account does not have access to write to the Certificate Store. You should be able to manually add the certificate by following the procedure mentioned in [How to Add a Certificate(s) to Windows](https://help.12dsynergy.com/docs/v5howtoaddacertificatestowindows).
7. Restart the **12d Synergy Server**service by doing the following:
  1. Click the **Windows Start button > Run** prompt **>** type **services.msc**. Alternatively, press the **Windows+R** keys simultaneously and type **services.msc**. The **Services** window is displayed.
  2. Right-click the **12d Synergy Server** service and select the **Restart** option. ![](https://cdn.document360.io/36833d89-59e3-46a5-b491-e9aa1b524a85/Images/Documentation/v5createaself-signedcertificate-image-z1dv5jpr.png) The 12d Synergy Server service is restarted, and the new certificate is loaded.