An organization should manage its suppliers and external resources by evaluating and documenting relevant suppliers, as required by ISO 9001:2015. This involves establishing criteria to assess suppliers, such as price, quality, and delivery time. The organization should also consider a risk-based approach to prioritize audits and assessments, focusing more on suppliers without ISO 9001:2015 certification. Additionally, the organization should ensure that necessary resources are determined and provided for the effective implementation and continual improvement of the Quality Management System (QMS).