Custom field not updatable from project

Ted 4 weeks ago in Home Portal / Smart Projects 0

We created a custom field called "Review Invoicing Notes."  This field lives on the client record, but it also shows up on project pages.  We just noticed that a project manager tried updating the field on a project.  However, that doesn't update the field on the customer record.  Would there be a way to either make this update on its own or make it so the field isn't editable on the project page?