In order to improve the customer experiences and explore value of loyalty programs, the operators are extending the scope of point redemption through creating a strategic polycentric collaborative network (CN) across multiple LPs. The point exchange is considered as a selectable approach. Because of the complexity, multicurrency and security risk of the CN, the existing process for exchanging points is cumbersome. However, the challenge of corresponding information system (IS) design received few attentions, which is critical for the success of the CN. We fill the gap by introducing blockchain technology and conducting an action design research (ADR). We partnered with a consulting corporate to design blockchain-enabled point exchange systems for the polycentric CN of loyalty programs. Our ADR study is in progress and the preliminary findings of new design principles may contribute to design theory in the blockchain and IS literature, and enrich both research and practice on LP.