If you want to connect your domain to your webspace you have to enter the IP-address of your webhosting in the DNS-settings. <br />
To find out the IP- address, we have to follow a few steps:<br />
Login into Plesk.  Create the desired domain. In the overview you can see the IP-address of your webhosting. Have a look into the DNS-settings of your domain provider. Create an A-Record without any name and paste the IP address in the content. Create another A-Record with the name * (asterisk) and paste the IP address in the content. <br />
IP-address of the subscription. <br />
It could take up to 24 hours until your domain is connected to the webspace package.  Usually you can add SSL-Certificates immediately. <br />
Please notice that it is possible that you may receive different IP-addresses for new domains in Plesk.