sales representative vs salesperson

sales representative and salesperson both are nouns.

Word	Noun	Adjective	Verb	Adverb
sales representative	Yes	No	No	No
salesperson	Yes	No	No	No

As nouns, sales representative and salesperson are synonyms defined as:

sales representative and salesperson: a person employed to represent a business and to sell its merchandise (as to customers in a store or to customers who are visited)

Other synonyms of sales representative include sales rep.

sales representative (noun)	salesperson (noun)
a person employed to represent a business and to sell its merchandise (as to customers in a store or to customers who are visited)	a person employed to represent a business and to sell its merchandise (as to customers in a store or to customers who are visited)