There are two common reasons preventing the removal of a resource from a project:
- The resource is assigned to one or more tasks. Replace those assignments with somebody else and you'll be able to remove the resource.
- The resource is the only project manager on the project. Make somebody else a project manager on that project and you can then remove them.
Another question you might ask about removing a Resource from a Project/Task or any Work Item is, "will this effect my past Time Entries??"
- The answer is no, all past work and time entered will remain on your tasks as historical records. Uneffected.
More information for manging resource in the project resource list can be seen in the following short video.
Create a Project - Adding Resources