Uninstall

Remove support() from betterAuth({ plugins }). Keep organization() if you use it for anything else. Then remove supportClient() from your auth client, SupportWidget, SupportInbox and the hooks from your UI, the cron that calls processSupportDeliveries, the inbound route at your mail relay, and the Tailwind @source line.

Then drop the tables, children before the tables they reference. Use the names your adapter or the schema option gave them. The quotes keep the camelCase names (MySQL uses backticks):

DROP TABLE IF EXISTS "supportAttachment";
DROP TABLE IF EXISTS "supportDelivery";
DROP TABLE IF EXISTS "supportMessage";
DROP TABLE IF EXISTS "supportTicketTag";
DROP TABLE IF EXISTS "supportCannedReply";
DROP TABLE IF EXISTS "supportTicket";
DROP TABLE IF EXISTS "supportCounter";

If your tables were generated with snake_case names (better-auth’s drizzle generator does this unless the adapter is set to camelCase), drop support_attachment, support_delivery, support_message, support_ticket_tag, support_canned_reply, support_ticket and support_counter instead, in the same order, without quotes.

supportAttachment and supportDelivery exist only if you used attachments and mailer. IF EXISTS covers both cases. No foreign key points at any support table from outside this list.

Last, delete the support/ prefix in your attachment bucket, if you used attachments:

aws s3 rm s3://YOUR_BUCKET/support/ --recursive

The plugin adds no columns to better-auth’s own tables (user, organization, member), so there is nothing else to clean up.