Android app publish

Hi guys, trying to update my first app and I keep getting this message; "You need to use a different version code for the APK or Android App Bundle because you already have one with version code 4" It keeps showing this no matter what I do, new build or new version. Any suggestions?

Web view open url combination?

Hi guys! I am in a really specific situation with my app and wondering if a solution is on the roadmap at any time soon? I am making an app that includes 360 virtual tours. Most VT software is designed for PC use and you really can't get out of the virtual tour from the phone except clicking back all the way to the first image and that kinda ruins the UX. Currently, I am linking my post in Figma with the web view screen having a top bar with the back button but I am afraid that soon enough I will go over 45 posts... A combination between these two would be a lifesaver