In Group Naming Policy, be able to specify format of prefix or suffix. We would like the policy to enforce a 3 letter prefix [user selectable] followed by a hyphen and then free-form text for the user. If the 3 letter prefix could be from a list we publish, all the better.

Our use-case is that we identify a group or asset by their 3 letter assigned code, then allow free-form text. For example - "GRC-Project123" would be valid. But I can't trust the users to name Groups (Teams, Planner Plans, etc) following the naming convention we've established.