MERRY & HAPPY by TWICE has sold 269,538 copies in Korea.
MERRY & HAPPY certifications and sales
| Country / region | Sales | Certification / source | Certification date / sales as of | |
 Korea |
269,538 | RIAK / Gaon charts | January 2022 |
Korea Sales: 269,538
Certification / note: RIAK / Gaon charts
Certification Date / sales as of: January 2022
|
| Total sales | 269,538 | (in 1 country) |
Total
Sales: 269,538
(in 1 country)
|
Year-end chart performance for MERRY & HAPPY
| Chart 2017 | Rank | Sales |
| South Korean Albums (Gaon) |
19 | 165,347 |
| Chart 2018 | Rank | Sales |
| South Korean Albums (Gaon) |
77 | 56,334 |