I want to Remove an old app in my AppStore Connect I have one app that is removed from sale individually but also still for sale in a bundle. Still,the option "Remove App" appears in "App Information" Section.

But as I pressed it, Apple says I cannot remove an app that is in an App Bundle. Well make sense. So I goto the app bundle and uncheck the "Cleared for Sale" box and save it. Then I open the bundle, where it says "Edit" I clicked on it and was able to remove the same app from bundle. Saved it and it brought me to main page of the bundle, and when I try to click Save there, it says


  Error encountered saving or updating bundle: Attempt to add or remove
  apps from a bundle that does not allow editing.
  
  Attempt to add or remove apps from a bundle that does not allow
  editing.
You can't add or remove apps from a bundle that has already been approved for sale. 

Source 


  Can I add or remove apps from an app bundle?
  
  You can only add or remove apps from an app bundle before it has been
  approved by App Review. If your app bundle has already been approved,
  you must create a new app bundle.


Create a new bundle with the apps you want, then retire the old bundle or perhaps at this point, contacting the apple developer store support team would be wise if you’re not certain how bundles work for removal. Making two bundles when you don’t like the one bundle you already made might not help things.