Delete a project off PWA without deleting its connected project site
Allow the ability to potentially programmatically unlink a project site connected to a project using CSOM for project online as PublishedProject.DeleteObject() deletes everything.
The background is that I want to have an option to programmatically (i.e. through CSOM and not through the web app) delete a project/s from PWA and not have the project site removed. This functionality could be used for archival purposes as you have said. An idea that came up was potentially unlinking the project site first before deleting it but apparently this is not possible.
Link to msdn w/response: https://social.msdn.microsoft.com/Forums/en-US/07b3ab44-d95d-4aa8-a253-1ed644dc1cb3/deleting-a-project-off-the-project-online-web-app-but-without-deleting-its-connected-project-site?forum=projectonline
Chris Kegler commented
When deleting a project, you can keep the conected project site by default. You can find the site via PWA settings, Connected sites for example to archive it's contents. What is the background of this question?