Securing Record Types

Users are granted access to record types according to their profiles. Profiles contain a section
called Record Type Settings. Every one of your custom objects is displayed there,
along with a list of the record types the profile is allowed to access and an Edit link.
the result of clicking the Edit link on a custom object called Resource in
the System Administrator profile. It shows that the System Administrator profile is allowed
to access two record types.The default record type is Internal, and the impact of this is
discussed in the subsequent section.

Another part of security is field visibility,which is partially determined by the page
layout. Record types add another dimension of configurability for assigning page layouts
to users.Without record types, the page layout is determined by a user’s profile. But with
record types, you have the additional option of splitting the decision by record type.You reach the
screen by clicking the Page Layout Assignment button in the Page Layouts section of the
object definition.

In this screen, an administrator can quickly review and modify the page layouts
assigned to all combinations of record type and profile.