# Requirements

Installed and correctly configured **WHMCS**

<p class="callout info">Module tested on **WHMCS** 8.1 version</p>

**NextCloud** server account with **WebDAV** access - this module works properly only with **NextCloud,** for now**.**

<p class="callout warning">The system requires use and has been fully tested with NEXTCLOUD, a recognized opensource software. You can use your own Nextcloud installation or use our free solution available at this link: https://crm.puq.pl/store/za-darmo</p>

For the correct operation of the module, PHP parameters are required:

```shell
PHP >= 7.2
file_uploads On
post_max_size 80M ;(Be guided by the size of the PDF files)
upload_max_filesize 80M ;(Be guided by the size of the PDF files)
max_file_uploads 40
```