System/technical user authentication possible on Bloomreach instead of human user?

Hello community, I have following situation.
We use Azure DevOps pipeline scripts to deploy on Bloomreach(BR) PaaS system. Currently, we use real user’s credentials for authentication and then run the Blue/Green deploy pipelines and this real user is created via mission control UI.
Now, for security reason, we must use system/technical user soon but BR’s mission control sends login credentials on user’s mailbox(Inbox) but unfortunately organization does NOT allow to have mailbox feature for such system user.
Now, is there other way to receive credentials and still authenticate that system user so that deploy pipelines can function well?
Please support. Thanks.

Please reach out to BR support through the support portal.