HAPPY DAYS by ANDRE RIEU has sold 100,000 copies in United Kingdom.
HAPPY DAYS certifications and sales
| Country / region | Sales | Certification / source | Certification date / sales as of | |
 United Kingdom |
100,000 | 1x Gold | 16 April, 2021 |
United Kingdom Sales: 100,000
Certification / note: 1x Gold
Certification Date / sales as of: 16 April, 2021
|
| Total sales | 100,000 | (in 1 country) |
Total
Sales: 100,000
(in 1 country)
|
Year-end chart performance for HAPPY DAYS
| Chart 2017 | Rank |
 Belgian Music DVD (Ultratop Flanders) |
15 |
 Dutch Music DVD (Dutch Charts) |
41 |
| Chart 2019 | Rank |
 Portuguese Albums (AFP) |
88 |
| UK Albums (Official Charts) |
76 |