Extensive research has revealed the benefits of soil microbiomes for crop productivity and soil health, yet their large-scale adoption remains limited, especially in developing regions. This low adoption can be explained by fragmented knowledge, inconsistent field performance, regulatory hurdles, and low farmer awareness. This chapter explored how harnessing the soil microbiome can boost crop productivity while mitigating climate-related stressors. We highlighted the role of multiple plant growth-promoting mechanisms of soil beneficial bacteria and fungi, including nutrient solubilizjation and fixation, nutrient cycling, phytostimulation, and carbon sequestration, in improving soil fertility and plant health. We also examined the role of microbial inoculants in mitigating drought, salinity, and pests’ diseases. We highlight key lessons from past field applications to reveal the importance of context (i.e., crops, geography, weather) in designing efficient microbial inoculants. To address challenges like ecological complexity, market barriers, and lack of awareness issues, we propose innovative strategies such as using tailored microbial solutions, adopting climate-smart microbiome management, and increasing farmer education to help close current gaps. This chapter underscores the soil microbiome’s underexploited potential in sustainable agriculture, noting the gap between extensive research and limited field application. and presented practical recommendations to integrate microbiome-based solutions into conventional farming for improved productivity and climate resilience.