Can I use a custom Openstack module with Red Hat Enterprise Linux - Openstack Platform?

Customers may at times with to use non-Red Hat Openstack modules as part of their RHEL-OSP deployment. This is allowed and does not change the overall supportability of the Red Hat-shipped components.

• If a customer reports an issue with a Red Hat-shipped Openstack component then Red Hat will provide full support.
• If a customer reports an issue with a non-Red Hat-shipped Openstack component, Red Hat will not be responsible for support.
• If a customer reports an issue and a combination of Red Hat-shipped and non-Red Hat-shipped component, Red Hat may request that the non-Red Hat shipped module be removed to further diagnose the issue.

This is inline with Red Hat's general policy on supporting third-party software:
As a customer how does Red Hat support me when I use third party components?