There are 2 data. "Company Name" and "Customer Contact Name".  I think QB blog team is confusing here. These are two separate data fields as you may know.

For instance:

ABC Company is in company name field.

Mr. John Smart is the Contact name field. (this data does not print on invoices, even thought the contact name data field is enabled and added to invoice template.

PS: I am an QB Enterprise user since 2010. I know what I m doing. Where am I making a mistake? Please help.