- Login to Magento Dashboard.
- Go to CUSTOMERS and select All Customers from the list.
- To Add New Customer,
- On the Customers page click over Add New Customer.
- On the next page where you need to enter the information related to customer in the given fields.
- Click over Save Customer.
- To Edit Customer Details,
- On the Customers page, scroll down to list of customers and click over Edit.
- On the next page, scroll down to the section on the left of which you want to edit details.
- Edit the details as required and then click over Save and Continue Edit and then Save Customer.
Check out the video tutorial explaining about the procedure in detail. You may refer to the blog as well.