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If you’re looking to make changes to your PlayStation information, there are a number of things to consider. For starters, the first change you make to your online ID is free, but subsequent changes will cost a fee.
Secondly, you will be signed out of all your devices upon changing your info. You’ll want to have your login info handy to make sure you can access your consoles again. The official site also advises that it can take up to a week for certain games and apps to acknowledge the change to your ID.
Source: https://www.distractify.com/p/how-to-change-playstation-name
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