Welcome to the Community, @joy49. I'll make sure you'll be able to wire a payment to vendor in QuickBooks Online (QBO).
When you record a wire transfer depends on the purpose of the wire transfer. You can either record it as an expense Cash Expense feature, or as a deposit using the Bank Deposit feature. I'd be glad to show you how it's done.
If you want to record a transfer as an expense, here's how:
Click on + New.
Under Vendors, select Expense.
Specify a vendor or place of purchase in the Payee field (Optional).
From the Payment account dropdown, specify the bank account the wire was transferred from.
In the Payment date field, enter the date.
Select the Payment method.
Enter Wire Trans or WT in the Ref no. field.
Specify the expense Account that tracks the charges, or enter Accounts Payable if the transfer was for a bill.