Welcome to community.
If the date cannot be entered in the appropriate format in the Type into field, you will need to click on the date field as day, month, year.
Also, have you had a chance to review this issues?
How to select date from date picker? - Help / Studio - UiPath Community Forum
How can i select day in DatePicker using uiPath - Help - UiPath Community Forum
Regards,
MY
ashokkarale
Anil_G
jast1631
Sarttra
FL.Duck
nashrif
Shakib