Workday uses the term "Integration IDs" as an umbrella term to capture all of the various "IDs" that we have in Workday that can be used for integrations. This term includes a Workday ID (WID), Reference ID, External ID, and Reserved System ID. Reference IDs are most often used to populate spreadsheet templates for inbound EIB integrations.

Methods to locate the needed IDs consist of using related actions from objects in the user interface, running the Integration ID or View Reference ID reports.

Workday ID

A globally unique identifier that Workday automatically generates on all customer data. Workday IDs consist of a 32-character, non-changing string. For example,

b0685b69d8ac412582c0a44d7973f707.

WIDs are unique within each Workday environment, thus the same Workday object has different WIDs in your production, sandbox, and implementation tenants. Although the use of WIDs can prevent integrations from inadvertently running against the wrong environment, testing, and migration of these integrations is more complex.

Reference ID

An optional, unique identifier that can be set externally or within Workday. Each instance of a business object can have one or more reference IDs. All Reference IDs contain a "type" and a "value".

 ·       The "type" defines the attribute that is being used as a unique identifier.

 ·       The "value" is the identifier itself.

 External ID

A two-part unique identifier that is controlled by an external system and can change. These IDs provide a way to capture external system IDs within Workday. These IDs are two-part unique identifiers. They require an "Integration System" together with an identifier value (e.g. Integration System = "Taleo" with ID = "A57987"). In prior updates, this ID was often referred to as "Integration ID" but are now referred to as "External IDs" for clarity.

External IDs consist of:

·       A system ID, which identifies an integration system in Workday. For example, SFDC is a system ID for a tenanted integration system between Workday and Salesforce.com.

·       A value, which identifies a particular business object instance. For example, W-001 is the external ID value for the Western region instance of the sales organization.