When you attempt to delete a field with in Dynamics CRM, a check will be performed to see if the field is being referenced. Here are some of the locations it will check:
- Forms ( published and unpublished )
- Views ( published and unpublished )
If any references are found, the following error message will be displayed:
Clicking the Details link will provide detailed information, which looks something like this:
As you can see, I have two dependencies that must be removed before the field can be deleted.
So here is the issue: That first entry is the parent record, in this case called an Installation Package, to my child entity, Installation Package Item.
How is that possible? I don’t have a reference ( Lookup ) to a Installation Package Item on the parent Installation Package form. Here is what the form looks like:
I don’t have a Lookup on the Installation Package form, but what I do have is an embedded sub-grid showing Installation Package Items. THAT is what is causing that dependency to show in the manner that it does.