Comment 3 for bug 2028706

Database constraints can always be changed. We've done crazier things in upgrade scripts before.

My main concern is that the SMS solutions that "always" work all cost money. I have mixed feelings about adding them to Evergreen. I could accept a situation where we've added multiple vendors as optional add-ons that a site can choose to activate. This might require a compatibility module on top. I fear that adding one and not some of the others will look like an endorsement from the community.

The default should always remain the free (as in beer) option in my opinion.