Per @joshbartolomucci via Slack:
UI wise, if sub_enddate is set, replace disabled "end subscription" option with something like "Continue subscription".
Ok.
Also, we might add a setting to allow for renewals or not (since some subscriptions are preset to a specific timeframe).
@joshbartolomucci can you flesh this out a bit? Would this require a new portal configuration option in the API and admin as well?