As a user, your Hyland account contains environments subscribed to Hyland Credentials. The Hyland Credentials REST API considers each of these environments a separate issuer, and the data generated by each issuer is segregated by the environment key.
Once you have published the template you wish to use to issue credentials, you need an environment ID. The environment ID is accessed using the Hyland Credentials solution in the User Portal.
For example, in the URL https://samhastings-univ.designer.credentials.contentinnovationcloud.hyland.com/index.html, the environment ID is samhastings-univ.
Verifiable credentials contain permanent URLs within the credentials. To make them portable, the integrator needs to create a web server and determine what URL they wish to be included permanently. The URL contains information about the issuer and whether the credential has been revoked. Hyland Credentials provides this information. So, the web server needs to redirect the calls to those URLs to the Credentials API.