Welcome to the QuickBooks Community, usermagfiresolutions. You can easily update a customer’s information by editing their details within the Customer Profile.
Just head over to All apps > Customer Hub > Customers & leads. Select the customer you want to update, then click Edit customer. Make your changes, then Save.
The changes you make will automatically reflect on your past and future transactions, including recurring ones.
For additional information and guidance, you can click on this article: Manage customer information in QuickBooks.
If you have additional questions, feel free to comment below.
