DEJA VU by SS501 has sold 0 copies on streaming services.
DEJA VU certifications and sales
| Country / region | Sales | Certification / source | Certification date / sales as of |
| Total sales | 0 | Album-equivalent unit |
Total
Sales: 0
Album-equivalent unit
|
Year-end chart performance for DEJA VU
| Chart 2008 | Rank | Sales |
 South Korean Albums (Gaon) |
33 | 33,700 |