What is the “Mobile Number Field” setting for?

Name: SMSGatewayCenter
Address: 225 & 226, Ground Floor, Raghuleela Mega Mall, Behind Pohisar Bus Depot, Kandivali West, Mumbai, 400067, IN
Telephone: 912228657726
Price range: 20

< 1 min read

It tells the automation which field on the object holds the phone number to send to. Only fields HubSpot classifies as a phone number type are offered.