CAS ID for an Applicant

The Liaison identifier for an applicant.

Some API calls, such as those that include the path applicants_by_cas_id, use the CAS ID for an applicant. This identifier is used across Liaison systems to uniquely identify an applicant. Think of it as having similar properties to a social security number (SSN) or a Universally Unique Identifier (UUID). Note however, that the CAS ID for an applicant is NOT a SSN or UUID.