validate the entry in the Configuration → RapidSetupConfiguration
there will be an entry for Workday, under that validate the what’s the value for the Joiner, once the Identity gets aggregated from WorkDay, validate if the condition specified under the RapidSetupConfiguration for matches with the same in the newly onboarded Identity.
Also, in the same configuration validate the entries for your AD Application, most likely there will be Population specified that will trigger the Provisioning of AD Account at the time of Joiner Process, confirm whether the newly onboarded Identity satisfies the condition for the Population.