auto delete SMS after a day on a user level

or SuperAdmin capability to manage data retention policy for a user level

If you log in as SuperAdmin on the RC App> click on Settings > Administration> Messaging> Manage beside Manage data retention policy, you can set it to delete after 1 day. This will delete other messages too like voicemails and faxes.
This however would apply to all users for the account so possible we can apply this to only one user.