This document provides guidance on preparing competitive project proposals for Erasmus+. It emphasizes that a successful proposal demonstrates concrete and sustainable results that benefit all partners. It should be jointly prepared by an international partnership and have full institutional commitment. The document advises starting with local needs and identifying potential international partners from past collaborations. Good proposals are coherent, simple, concrete, clear, explicit, rigorous, and focused on fulfilling all requirements. Proposal drafting is a shared exercise requiring regular revision. Advice is given on mobility actions and respecting call criteria to develop a manageable and cost-effective project.