This is done by editing the vendor's profile, tammielouiseb.
In QuickBooks Online (QBO), you can set up a vendor so that it automatically defaults to a specific category in your Chart of Accounts, like Utilities, whenever you enter a new transaction for them.
Here's a step-by-step guide for you:
- Go to My Apps from the left menu.
- Choose Expenses & Bills and select Vendors.
- From there, choose a vendor and click to modify the information.
- Then, go to the Accounting section and choose Utilities as a default expense category.

This saves time to reduce manual entry tasks in QBO. The next time you create a transaction for that vendor, the Utilities account will automatically pre-fill in the Category field.

Additionally, here's an article that can help you with modifying your vendor's information and transactions: How to view and edit vendor transactions.
I'm more than willing to help if you still need assistance with your vendors or accounts. We'll ensure your needs are taken care of, tammielouiseb.