Disable App Specific Password Apple. If the section doesnt look greyed out, click on always require password. Click on the “edit” option located under the security section.
Turn off itunes & app store for touch id or face id (under settings / touch id & passcode or face id & passcode under apple id section, click on media & purchases / password settings. While face id is super convenient, one may want to disable the feature for specific apps such as banking apps where they might want to enter your password manually. Also, make sure it keeps running the background.
Apple sends an authentication code to another apple device registered to that apple id.
Your apple id is the account you use for all apple services. Also, make sure it keeps running the background. Turn off itunes & app store for touch id or face id (under settings / touch id & passcode or face id & passcode under apple id section, click on media & purchases / password settings. Go to icloud in system preferences account details.