This study addresses a significant gap in the organizational theory literature by exploring the role of compatible logics, specifically religion and community logics, in organizational decline. Utilizing a longitudinal archival qualitative study focused on Scarboro Foreign Missions (SFM), a Catholic congregation from Canada, we examine the interplay between religion and community logics over a century, leading to SFM's organizational decline in 2018. The findings reveal that organizational decline occurs when one logic becomes dominant without being part of the original identity (community logic), while the other weakens (religion logic) but remains integral to the identity. The study sheds light on the counterintuitive yet neglected phenomenon of compatible logics contributing to decline and its relationship with organizational identity.