Abstract: Techniques and systems are disclosed for forwarding a limited number of vendor messages during a consumer mobile device campaign, such as a CSC campaign. Opt-in events are received from an aggregator's message service platform for a consumer mobile device (e.g., smart-phone), and a time interval is identified for the campaign that comprises a duration for the campaign. Campaign parameters are identified, where the parameters comprise a desired number of campaign messages for the “opted-in” consumer mobile device. Vendors are grouped into one or more campaign message categories (e.g., by service or products), and a bidding frequency is identified for campaign message categories for the campaign duration. Bids are received for message slots at the bidding frequency for a campaign message category, a desired bid is selected if it meets a threshold, and the corresponding vendor message is sent to the opted-in phone(s).