How to add customer custom field on web?

To add customer custom field on web, please follow below mentioned steps:

Step 1: Please go to Customers & click on Edit.

Step 2: Click on +Add Custom fields.

Step 3: Scroll right to customer and click on +New custom Filed.

Step 4: Add the Customer Custom Field and click on Save.

Step 5: This how custom feild will look like you can add the details and click on Save.