Is there any overlap in missions between gta online and story mode?
Quick Answer
No, there is no meaningful overlap in missions between GTA Online and story mode; they are separate experiences with distinct objectives, narratives, and rewards.
Explanation
GTA Online and GTA V story mode operate as entirely separate game modes with no shared mission structure. Story mode follows a linear narrative centered on three protagonists and their personal criminal endeavors, while GTA Online functions as a standalone multiplayer component focused on cooperative and competitive activities like heists, races, and business operations. Although both modes exist within the same fictional universe and map, the missions themselves are designed independently with different goals, cutscenes, and progression systems. Players cannot transfer mission progress or unlockables between modes, and completing objectives in one mode provides no benefit toward the other's mission structure.