This guide has been developed to support ICS/STPs in the East of England and more widely in determining the funding priorities and evaluation of projects relating to mental health urgent and emergency care. The first section of the guide following this Summary aims to support you with your resource prioritisation, focusing on the key steps and aspects to consider when deciding what to fund. The second section offers an overview of how to think about developing logic models for the work you have funded, which is away of understanding whether the funding has led to its intended outcomes.