You need to click on the tabs to check whether there are any outstanding issues on any of them. Once you have input data onto a tab for the first time and clicked the Save & Submit button the other required fields will be highlighted to you.
Once you have input all the required details the tab will go green to show that it is complete. The only tab that remains orange before the Managing Trustees complete their authorisation is the Project Summary. The Project Summary tab goes green when Final Consent is given by the Consent Giving Body.