Before form is submitted (see jQuery create.js, see $('form.admin-form').submit ....) a check is needed to see if the user-selected ODK project holds the right 2 forms (for 3d photos and fill photos), and an app-user (only one) is available. If either one is not available a flash message should be returned. Use function flashMessage for that. Plenty of examples in thew code how to use that function.
Before form is submitted (see jQuery create.js, see $('form.admin-form').submit ....) a check is needed to see if the user-selected ODK project holds the right 2 forms (for 3d photos and fill photos), and an app-user (only one) is available. If either one is not available a flash message should be returned. Use function flashMessage for that. Plenty of examples in thew code how to use that function.