Login problems
I sign in with new Apple ID due to forgate old id’s password.new id is sign in successfully but when I enter into App Store old id is ask password to update my apps. Please solve the problem so that old is will remove from my iPhone
All downloads are permanently tied to the account that downloaded them, so only that account can download updates to its apps.
To reset an account's password : If you forgot your Apple ID password - Apple Support
Or if you want the apps linked to your new account delete them and buy and download them on the new account