The license code can only be used with the TurboTax desktop CD/Download editions.
If you have a 2023 TurboTax online tax return the tax data file can be downloaded to your computer so you can complete and file the 2023 tax return with the software you purchased.
See this TurboTax support FAQ for saving the online return as a tax data file - https://ttlc.intuit.com/turbotax-support/en-us/help-article/import-export-data-files/save-turbotax-o...
See this TurboTax support FAQ for installing the desktop CD/Download editions with the license code - https://ttlc.intuit.com/turbotax-support/en-us/help-article/license-information/install-turbotax-cd-...
