It's possible to change a category on an account from expense to COGS in your QuickBooks Online (QBO).
To do this, you need to go to the Chart of Accounts section and select the relevant expense account that you want to edit. Once you have selected the account, you can change its category from expense to COGS.
Here's how:
On the gear icon, under your company select Chart of Accounts. Under Expenses search for the correct expense account.
On the right side of the Run report, click the dropdown ↓ and select Edit.
Under Save account search or select Cost of Goods Sold and click Save.
To give more information about what the chart of accounts is and why it’s important to set it up correctly in QuickBooks Online, check out the articles below: