You must select a customer. If the customer isn't on the list, you can add it by typing the name and pressing Enter.

Hi @swapnil2,

I agree with the information you've shared here in the Community. However, If you need any help or further details about the steps you're trying to perform in QuickBooks, feel free to add a comment below.

In the meantime, you can check the following articles to learn about uploading customers from email contacts, as well as some guidance on how to manage them in QuickBooks:

• Import customers or suppliers from email contacts to QuickBooks Online
• Add and manage customers in QuickBooks Online

Please know that you're always welcome to post any questions you have in this space. Have a great day ahead.