Final answer:
To record office supplies purchased online using a company credit card not connected to online banking in QuickBooks, manually enter the transaction in the credit card account and categorize it with the appropriate expense category.
Step-by-step explanation:
In QuickBooks, when recording a purchase made with a credit card that is not connected to online banking, you would manually enter the transaction in the credit card account and categorize it.
You would select the appropriate expense category for the office supplies purchased using the company credit card.
This allows you to keep a record of the transaction and track expenses accurately in QuickBooks.