This document discusses when a data management plan (DMP) is needed and provides resources for creating a DMP. A DMP is needed when applying for funding from research councils or institutions that require a plan for managing the data generated in a research project. The DMP should address what data will be collected or generated, how it will be organized and documented, and how it will be preserved, shared, and made accessible. The document lists several online tools and working groups that can help with creating DMPs, including the DMP Common Standards working group which aims to develop common standards to make DMPs machine-readable.