Wiktionary
add value
vb. (context intransitive business management English) To make a product or service more desirable or useful.
Usage examples of "add value".
The interface between the client and server components of the Web Proxy service provides chances to add value to the connections it services.
This has been the dilemma of all spaceflight: to carry an additional redundant system, or to add value elsewhere?
Vast areas of fertile soil flank the bare rocks where vegetation has taken root, and large fields of forage and extensive forests of oak and pine add value and beauty to the land.