[Purview Policy Store Self-service] Data Policies Subjects API

Is there a way to update the subjects of a data policy using the email("principal.microsoft.emailAddress") instead of the user's ID ("principal.microsoft.id") when calling PUT {{Endpoint}}/policystore/dataPolicies/ ?
Many thanks!

Start by reviewing the Purview Policy Store Data Policies API, especially PUT {{Endpoint}}/policystore/dataPolicies/ and the subject fields principal.microsoft.emailAddress and principal.microsoft.id. Determine whether email-based subject updates are supported; done means documenting the supported behavior or defining the API specification change needed to support it.

Written by the indexing model from the issue text.