> For the complete documentation index, see [llms.txt](https://brenkel-solutions-eg.gitbook.io/installation/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://brenkel-solutions-eg.gitbook.io/installation/english-1/licensing/saas.md).

# SaaS

In order to use your demandPlus+ extension, you need an active (trial) subscription. In the following pages you will find instructions how to create or buy your subscription.