An organization should manage its suppliers and external resources by evaluating relevant suppliers and documenting the evaluation. This involves establishing criteria such as price, quality, and delivery time to assess suppliers. The organization should also consider a risk-based approach to prioritize audits and assessments, focusing more on suppliers without certifications like ISO 9001:2015. 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), considering both internal and external resources.