Dear Support,
I am trying to add app part in SharePoint 2013 online public facing web site and I used to default SharePoint given Contact Us app part and successfully added in SharePoint public facing web site and inserting data in SharePoint list as back end.
I had created custom list app part and added in public facing web site but I am unable to add new item in public facing web site its asking SharePoint login credentials on public facing web site. When I am adding new items.
Please let me know how to create custom app part as a SharePoint given contact us app part on public facing web site.