You can search for content about Project Web App on Office.com by typing what you’re searching for in the search box at the top of any Office.com page:
Click more on the right side of the search results to filter the results by product.
At the bottom of the list of products, click More.
Click Project Server in the expanded list of products to filter the search results to only those articles and links that apply to Project Server.
To filter the Project Server search results even further, click the version number for Project Server.
If you’re still not finding what you need, you may find it helpful to post your questions and issues on a discussion forum. The discussion forums tend to be very active, which make them a great resource for finding others who may have worked through similar issues, or encountered the same situation.