A system for proximity-based digital interactions includes a beacon transmitter configured to wirelessly broadcast a first interaction prompt message that includes a first interaction event code. A system server is configured to: receive an event activation message that includes the first interaction event code; identify and perform a first pre-programmed action; identify proximity between a mobile computing device and the beacon transmitter based on receipt of the first interaction event code from the mobile computing device; create a second interaction event code that is targeted to be performed by the mobile computing device; and transmit a configuration message to the beacon transmitter that includes the second interaction event code, causing the beacon transmitter to begin broadcasting a second interaction prompt message including the second interaction event code together with the first interaction prompt message, where the first interaction event code is different than the second interaction even code.