1. Login into Plesk Panel.
2. Click on the "Subscriptions" button of the left side of the screen as marked in the image.
3. Select on the "Subscriptions Name" button as marked in the image.
4. Click on the "Change subscriber " button as marked in the image.
5. Select the "Subscriber Name" as marked in the image.
6. Click on the "Next" button as marked in the image.
7. Check all the detail then press the "Finish" button as marked in the image.
8. Subscriber assigned successfully as marked in the image.
