The system key, a unique record identifier, from the originating system. The originating system is the system with authoritative control over the record. For example, the Multiple Listing Service...7/25/2019
DefinitionThe system key, a unique record identifier, from the originating system. The originating system is the system with authoritative control over the record. For example, the Multiple Listing Service where the listing was input. There may be cases where the Source System (how you received the record) is not the Originating System. See Source System Key for more information.
