User provisioning is a vital component of identity and access management (IAM) that facilitates the systematic management of user accounts at scale, enhancing security, compliance, and operational efficiency by overseeing the lifecycle of user identities across platforms. This process involves assigning roles, permissions, and credentials, streamlining create, read, update, and delete (CRUD) functions while boosting productivity and user experience. The implementation of technologies like SCIM automates these processes, enabling swift and secure transmission of account information. However, challenges such as maintaining accurate data, compliance with regulations, and managing diverse user needs at scale necessitate a careful approach. Best practices include standardized onboarding/offboarding, automated processes, role-based access control (RBAC), and regular reviews to ensure effectiveness. Descope offers a solution with automated SCIM provisioning, customizable user models, and data enrichment, enhancing security and user lifecycle management.