Resources

Resources are items earned or looted by the player that can be spent in-game. Each can have different functions and some are not stored or act the same way. Account Resources are infinite and reserved to everything linked to a player's account & most can be often be found in the Weekly Item Shops. Inventory Resources (or Materials) are exclusive items to a player's items & inventory (schematics, heroes, ...), they are usually collected while in a mission.

Inventory Resources
More information: Materials (Save the World)