Previously, businesses weren't all that welcome on the service, since its terms of service prohibited it.
Previously, businesses that needed to run surveys, set up SMS shortcodes, run teleconferences, or send appointment reminders might have had to build their own technology, or rely on inefficient human call centers.
The two companies have previously done business together.
Zagat Survey has previously done business with a magazine publisher and one of its advertisers.
Since previously only business and government travelers were approved, the accord is likely to significantly increase the flow of visitors.
Leathers's agent alerted dailymail.com, the online version of a British tabloid with which she'd previously done business.
"This decision will not impact Chrysler's ability to achieve its previously announced business plan targets," the company said.
"We're enjoying it -- we have peace," Mr. Muhammad said, explaining that in Kaduna, where he had lived previously, his business had suffered.
According to the correspondence, a Russian government official had contacted a former associate of Donald Trump, who had previously had business dealings in Russia, and offered anti-Clinton information.
