Massive digital transformation demands the readiness of Human Resources (HR) to possess high digital literacy and flexibility to balance technology integration in company operations. A competency gap (skill gap) frequently emerges between the skills employees currently possess and industry needs, making intervention through training programs a crucial strategy. This study aims to identify, review, and synthesize previous literature to determine the extent of the influence and effectiveness of training programs on improving employee performance in the digital era. The method used in this research is a literature review to synthesize recent academic findings. Based on the literature synthesis, training in the digital era is not only effective in improving technical mastery (hard skills) but is also proven to be crucial in building employees' psychological capacity (such as resilience and self-efficacy) to reduce work-related stress caused by rapid technological changes. In conclusion, targeted training programs are empirically capable of overcoming the shortening half-life of learned skills and are highly needed to boost employee productivity and operational work quality
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