Reply To: Project Online (PWA) – Writing data back to OData

[MarkHortman]

There is quite a few articles out there on how to update using Powershell. So read your file in through powershell and then update PWA using CSOM. Here are some links.

https://docs.microsoft.com/en-us/office/client-developer/project/getting-started-with-the-project-server-csom-and-net

https://social.technet.microsoft.com/Forums/ie/en-US/c91644b7-3c0f-4d65-a8d7-2dec128d1dcf/project-lookup-custom-field-update-with-csom?forum=project2010custprog