> ## Documentation Index > Fetch the complete documentation index at: https://developer.hellgate.io/llms.txt > Use this file to discover all available pages before exploring further. # Overview > Configure and manage merchant accounts Configure and manage merchant accounts based on your chosen operating model. The merchant management capabilities adapt to support all four Commerce V2 operating models. The default model for single businesses. Your account operates as a standalone merchant processing its own transactions. * Single merchant configuration locked to your primary account * Cannot add sub-merchants (`POST /merchants` disabled) * Cannot delete the primary merchant (`DELETE /merchants/{id}` disabled) * Full access to all payment features for your own transactions Enable multiple sellers or service providers to process payments through your platform. * Add and manage multiple sub-merchants * Configure individual processing rules per merchant * Track transactions by merchant for split payments * Implement marketplace payment flows Platform model requires activation by your account manager. Grant controlled payment capabilities to third parties within your business ecosystem. * Onboard ecosystem partners as sub-merchants * Set transaction limits and permissions per partner * Maintain oversight of all ecosystem transactions * Common in mobility, delivery, and service networks Ecosystem model requires validation of your use case by your account manager. Full payment facilitation with comprehensive merchant management capabilities. * Advanced sub-merchant onboarding and underwriting * Risk management and compliance tools * Detailed merchant monitoring and reporting * Support for complex multi-party payment flows Managed Ecosystem requires special licensing and compliance review. For more detailed information about operating models, see the [Operating Models documentation](/products/commerce/v2/operating-models).