Using a SALT (Siemens Advanced Licensing Technology) License

Last modified: April 18, 2025

Introduction

When purchasing Mendix, you may receive a SALT (Siemens Advanced Licensing Technology) license.

SALT licenses are held in a license server, from which licenses are provisioned to your Mendix applications.

This guide provides instructions on how to deploy a Mendix application using a SALT license.

Restrictions

SALT Licenses have the following restrictions

  • they are compatible with Mendix version 10.24 and above.
  • they cannot be used in the Mendix Public Cloud.

Prerequisites

To use a SALT license, you must have received an email containing the SALT license file.

License Server

To use a SALT license, you need to install the Siemens License Server in the environment where your Mendix applications are deployed. You need to register to use the Siemens Support Center, and you can then download the software from Siemens License Server – Downloads.

For detailed instructions on installing and configuring the license server, please refer to the Siemens License Server – Downloading and Installing the Siemens License Server (SLS) documentation (registration required).

Ensure that all Mendix applications can access the license server.

Application Configuration

After deploying the license server you can configure each Mendix application that uses a SALT license.

  • Set runtime setting License.SaltLicenseLocation to port@host, where:

    • port is the port number chosen during the license server installation
    • host is the hostname or IP address of the license server.

See Runtime Customization for information on how to create runtime settings for your deployment target.