When an Engage giver wants to make a text gift, they will send a text message to your SMS Giving Number in the format [command] [amount]. So, for example, if the Text Giving command for the Building Fund is BUILD and a giver wants to make a $100 gift to the Building Fund, they text 'BUILD 100' to your SMS Giving Number.
The first time someone uses text giving, Engage needs to connect their mobile number to their Engage account. So for the first text gift, Engage will respond with a link for the user to log into their Engage account.
Once the giver has logged into their Engage account, Engage associates the mobile number with the Engage account so that subsequent gifts from the same mobile number are credited to the giver with that Engage account. Engage will reply to subsequent gifts with a confirmation message.