I cannot create an estimate on the app via my phone, as the error message pops up 'no terms set' but there is nowhere to enter any terms. How can I remedy this please?

Hello Ajtilds-gmail-co, 

Welcome to the Community page, 

Can you try refreshing the data in the app and then try again to do the estimate and let us know if the same thing still happens. To refresh the data you need to click on the cog wheel top left hand corner>refresh data.