The RESO OUID's OrganizationUniqueId of the Originating record provider. The Originating system is the system with authoritative control over the record. For example; the name of the MLS where the Open House was input. In cases where the Originating system was not where the record originated (the authoritative system), see the Originating System fields.

Standard Name: OriginatingSystemID

Display Name: Originating System ID

Group: --

Data Type: String

Suggested Maximum Length: 25

Suggested Maximum Precision: --

Synonyms(s): --

Field (Element) Status: ACTIVE


Record ID: cb8d326

Lookup Status: --

Lookup: --

Payloads: IDX

Spanish Name: ID Sistema de Origen

French-Canadian Name: --

Status Change Date: DEC 26 2018

Revision Date: DEC 05 2018

Added in Version: 1.5.0


  • 47% of Systems (8/17)
  • 31% of Organizations (155/501)

For more information on items displayed on this page, see Data Dictionary Terms and Meta Definitions.

RESO certifies against the Standard Name.

Display Name represents a recommendation for public display that MLSs and other data producers may use based on local, legal and language-based needs.

Page Revision Date: Nov 08 2023

Form: OtherSimple