Main Challenges of Managing Multiple Cargo Warehouses in GTA Online

Inventory management: Keeping track of inventory levels across multiple warehouses can be difficult. You need to balance stock levels and ensure you're not overstocking or understocking any particular location.
Efficiency and logistics: Coordinating sourcing and selling missions across multiple warehouses requires careful planning to maximize efficiency. You need to optimize routes and timing.
Security: Multiple warehouses means more potential targets for raids and attacks from other players or NPCs. Protecting all your locations becomes more challenging.
Investment and maintenance costs: Each additional warehouse requires a significant upfront investment and ongoing costs to maintain and upgrade.
Staffing: Managing technicians/staff across multiple locations, especially in the Nightclub business, can be tricky to optimize production.
Glitches and bugs: The game sometimes has issues with warehouses not accruing goods properly, requiring troubleshooting across multiple locations.
Selling strategy: Deciding when and how much to sell from each warehouse to maximize profits becomes more complex with multiple locations.
Time management: Sourcing for multiple warehouses is more time-consuming and requires more active gameplay.
Learning curve: Each type of warehouse (cargo, vehicle, nightclub, etc.) has its own mechanics to master.
Balancing active and passive income: Deciding how to allocate time between actively managing cargo warehouses and other passive businesses.

While having multiple warehouses provides benefits like increased storage capacity and income potential, it also introduces these management complexities that players need to navigate effectively to maximize profits.