Systems and methods for facilitating online to offline commerce are disclosed. In one embodiment, a system configured to receive a request to check-in a customer at a merchant facility is disclosed. The system receives a request to access real-time pre-sale transaction data associated with a first customer and transmits the real-time pre-sale transaction data associated with the first customer to a mobile client device. The request to check-in and the request to access the real-time pre-sale transaction data are transmitted by the first mobile client device. The system is configured to authenticate the request to check-in at the merchant facility, process the request to access the real-time pre-sale transaction data, and responsively access the real-time pre-sale transaction data associated with the first customer from a point of sale device located at the merchant facility.