I have Rest API URL below:
https://DevSite/_api/web/lists/getbytitle('Test')/items?$select=AuthorId,Author/FirstName,Author/LastName,Author/Id,Author/EMail&$expand=Author
It is not working, it shows error:
The query to field 'Author/FirstName' is not valid.
I'm trying to get Author first and last name using REST API.
I have checked that there is items in list, everything is ok, still shows error