Before we can accomplish your task for today, can you tell me more of the help you need saying you need to import vendor detail? Are you creating a list of your vendors' names or a list of your vendor transaction for matching?
If you paid for the bill with a credit card or cash
Press the +New button on the left-hand menu bar.
Choose Pay Bills under the "Vendors" portion.
Pick the account you paid the bill through from the Payment Account drop-down.
You can enter the starting check no. if you chose a checking or savings account.
Enter the payment date.
Type in the amount you paid towards the bill in the Payment column.
Tap Schedule payments online to learn about available payment processing options.
If you paid for the bill with a check
Hit the +New button.
Select the Check option under the "Vendors" portion.
Pick the Vendor you paid from the Payee drop-down.
Press Add to add an open bill to the check.
Choose the account you made the check payment from the Bank account drop-down.
Enter the check amount.
When you're ready, click Save and new or Save and close.
You're on the right track in clicking the Pay Bills option to record the supplier payments. However, QBO suggests possible matches if the transactions have the same date and amounts. That's why the system doesn't auto-match the payment (lump sum) to the bills you've created since they have different figures