Manage Customers and income
A warm welcome to the Community, Stephane Couronne.
I can help and share some insights regarding adding custom fields to the customer's database in QuickBooks Online.
For now, you can use the Other field to enter other customer's information since adding custom fields is currently unavailable in QuickBooks Online.
Or, you can use the Notes tab area to enter other customer's personal information. This will be shown on your customer's profile once saved.
I'm sharing with you the following write-ups below. This will provide you more information about merging as well as steps on how to designate inactive customers in QuickBooks Online:
You can always get back to me if you need more help. I'd be more than willing to lend you a hand.
