In many cities, shared micromobility services (SMMS) have become popular. These services contribute to the popularity of car-alternative mobility by promoting the use of micro-vehicles. Bike-sharing and e-scooter-sharing systems are examples of these services. Despite their potential, the share of SMMS is still marginal. To unlock their full potential, policymakers and service providers need to comprehend the wider implications of their strategies on the adoption, use, and profitability of these services. This paper investigates the implications on travel demand, use patterns, and business profit of two strategic decisions: the size of the fleet and the pricing of shared bikes and e-scooters. This research relies on an agent-based transport simulation framework and trip records of shared bike and e-scooter users from the city of Lyon, France. The results show that despite their actual marginal share, SMMS have a non-negligible growth potential in Lyon. This potential is actually unfulfilled due to sub-optimal pricing and fleet size strategies. More optimal strategies from the point of view of service providers and customers are discussed in the paper. These findings can be generalized to other cities and shared micromobility services. They can also interest policymakers and service providers in the design and operation of successful and efficient SMMS.