We are trying to set a company attribute in Okta -> AD -> M365 coming from Workday. Since this attributes for some oddball reason is not passed from Workday to Okta, we are using an expression for the Okta organization attribute as follows:

hasWorkdayUser() ? "CompanyName" : "null"

The problem is that we have three instances of Workday: production, preview and sandbox. As such, the expression always returns null for users who are assigned more than one instance of Workday. I would hard code the company name but since we have vendors and contractors intermingled in Okta, I can't do that. We use the above method since only employees are present in our instance of Workday. So my question is, how can I assign a company name for only employees in Okta without using any workday expressions?