Data Flow Diagram (Input via Mobile App -> API -> Temp Table -> Website)

Need a data flow diagram to help with next stage of mobile app development. Mobile app creates audio recordings. The diagram will need to account for BOTH the current app functionality and the new functionality outlined below. Current App Functionality - Users create audio recordings in mobile app. Audio recordings are stored in Google Firebase. - Mobile app users enter basic user profile info in mobile app. - Profile info saved in Google Firebase. New functionality (to be developed) - Audio files in firebase displayed on website - Add function in Mobile App where users "upgrade" their profile via API calls to 3rd party system - Upgraded users input data (SSN, DOB) via mobile app & API call to 3rd party system - Output from API calls stored in temp tables - Temp table data transformed to badge (images) that will added to user's profile in mobile app & shown with their recordings on website I can provide view only access to firebase (if needed). Please include price and time estimate.