See someone ask this question, here is a brief description of the solution, mainly for the first encounter this problem foggy friend, error is as follows
When we built the lookup associated with this setting, for many novice default is this does not make changes, because no one in itself to tell him how to do, here will involve a navigation display problem.
I would like to cite an example, the warehouse inventory and warehouse has a n:1 relationship, that default in the navigation with the plural name is displayed, that is, the appearance of 2
viewing in the form editor will look like this, the part of the red box is called the application Ribbon, you are in someone else's form, how can you delete it, of course, it is not, so either you in the main entity's form editor in the deletion of this, or change the display options in the association relationship to not display, It will be deleted after it is finished.
So when you create a new relationship, if you do not need to display it in the main Entity Navigation tab, you can choose not to display it when you build it, lest you remove the trouble later.
Copyright NOTICE: This article for Bo Master original article, without Bo Master permission not reproduced.
The Dynamics CRM dependent component type is a workaround for the inability to remove entity issues that are caused by the application ribbon