If you filed the 2023 tax return then it will have to be amended.
See this TurboTax support FAQ for how to amend a state tax return - https://ttlc.intuit.com/turbotax-support/en-us/help-article/tax-return/need-amend-state-return/L3hGF...
If you have not filed the 2023 tax return, then go back to the W-2 section of the program and verify that the amount of the state taxes withheld were entered in box 17 of the W-2 and that Oregon was entered in box 15.
Click on Federal on the left side of the online program screen
Click on Wages & Income
On the W-2 listed, click on the Edit/Add button
