Hello there. Welcome back to the Community.

Let's apply your expense transaction as a bill payment so you won't be recording your $50 credit card payment twice in QuickBooks Online (QBO) and manage your expenses accordingly. 

To do this process, you'll have to edit the expense transaction and update the affected account to Accounts Payable (A/P), and then link it to your credit card bill. Here's how:

1. Open the expense transaction, and go to the Category details section.
2. Change the affected account in the Category column to Accounts Payable (A/P).
3. Click Save and close.
4. Open the bill you created, and click the Make payment button.
5. Under the Outstanding Transactions section, mark the bill you want to pay.
6. Under the Credits section, mark the expense transaction. We'll use it as a payment.
7. Make sure the AMOUNT PAID is equal to zero (0.00).
8. Click Save and close.

Please see this article to learn more about managing expenses in QBO: Record, edit, and delete expenses in QuickBooks Online.

Also, there are specific ways you can customize your reports to get insights about your business. You may want to check out this article as your reference to guide you in pulling up the one you need to manage your vendor payments in QBO: Common custom reports in QuickBooks Online.

If you have any other concerns about managing bills and expense transactions in QBO, let me know by adding a comment below. I'm more than happy to help. Keep safe!