Human resources management (HRM) is one of the most significant business processes since the efficiency of the organization as a whole depends on its effectiveness. Digitalization causes changes in all areas of life, organizations’ business processes, and labor market changes, which determines the study’s relevance. Our study aims to substantiate approaches to improving the HRM business processes in organizations to increase the efficiency of personnel and business as a whole. Staff turnover is singled out as one of the most important factors affecting the level of labor productivity. It is justified that this phenomenon is due to the inefficiency of business processes of personnel enhancement, which can be improved by introducing a qualitative adaptation process. It has been proposed to single out two stages in adapting the business process: the initial stage (onboarding); the stage of corporate socialization. The notation “Adaptation of a new employee” has been developed, which allows you to identify problem areas, simplifies the search for new solutions to eliminate them, and ensures the optimization of the corresponding HRM business process in the organization. The novelty of the investigation is to substantiate approaches to improving the business process of adapting new employees in the context of digitalization, which will enable organizations to receive additional cost savings in recruiting, reduce turnover and increase staff enhancement, and therefore will contribute to the growth of labor productivity.