THAT'S WHAT FRIENDS ARE FOR by DENIECE WILLIAMS & JOHNNY MATHIS has sold 600,000 copies in United Kingdom and United States.
THAT'S WHAT FRIENDS ARE FOR certifications and sales
| Country / region | Sales | Certification / source | Certification date / sales as of | |
 United Kingdom |
100,000 | 1x Gold | 31 October, 1978 |
United Kingdom Sales: 100,000
Certification / note: 1x Gold
Certification Date / sales as of: 31 October, 1978
|
 United States |
500,000 | 1x Gold | 20 July, 1978 |
United States Sales: 500,000
Certification / note: 1x Gold
Certification Date / sales as of: 20 July, 1978
|
| Total sales | 600,000 | (in 2 countries) |
Total
Sales: 600,000
(in 2 countries)
|