You have to be using the TurboTax Deluxe online edition to import your donations from ItsDeductible.
To enter charitable donations -
Click on Federal Taxes (Personal using Home and Business)
Click on Deductions and Credits
Click on I'll choose what I work on (if shown)
Scroll down to Charitable Donations
On Donations to Charity in 2023, click on the start or update button
On Import from ItsDeductible Online, click on the start or update button