All of the profiles from the containers you identify will be synchronized by SharePoint. The exception will be if you decide to exclude profiles through the use of a filter. You can create a filter to exclude those user accounts that have been disabled. Filters consist of a set of clauses that a connector joins. There are three parts to each clause are Attribute,Value, and Operator.
You have two options when it comes to the method for joining the clauses to the exclusion filter All apply is when an account matches the filter only if all the clauses apply and any apply is when an account matches the filter if any of the clauses apply.
If you have temporary employees in the organization with AD accounts starting with T, you can synchronize the profiles for all permanent users with accounts that haven’t been disabled. With AD DS, you will find bit mask in the user Account Control. This represents various aspects of the status for a user account. You can’t create a filter that has membership as the basis it in the directory service group. This includes the distribution list.
In order to import properties from a business system, you will need an external content type. It will bring the property value from an external system into the SharePoint Server 2013. The information here doesn’t cover creating an external content type. That is a task normally reserved for a developer to complete. It does cover the data you will need to collect and provide that developer with.
With user profiles that a 1 to 1 relationship with the items of the external content, you need to create a specific finder method. Any external content type will contain the date of birth of the user for a 1 to 1 relationship. The user profile will also match one item of the extra content type.
When a user profile is a 1 to 1 relationship with items that include external content type, they create a finder method and a comparison filter. For example, there is unique information found on the license plate of any vehicle, and that is an example of such 1 to 1 relationships. Even though a person may own several vehicles, that is a unique way to identify them from each other.
The information that is received back from the external content type developer is important. It allows the users for a group to have profiles for properties that share the same external content type.