Debugging Supabase RLS Issues: A Step-by-Step Guide

Debugging Supabase RLS Issues: A Step-by-Step Guide Row Level Security (RLS) is powerful but also a common source of frustration. You set up a policy, it works in development, then fails in production. Or you get cryptic "permission denied" errors with no clear cause. This guide teaches you how to systematically debug RLS issues. Understanding RLS Errors Common Error Messages "permission denied for schema public" RLS is enabled but no policy exists for this operation Solution: Create a policy for SELECT, INSERT, UPDATE, or DELETE "new row violates row level security policy" INSERT or UPDATE failed because the new data violates the WITH CHECK condition Solution: Ensure the data matches the policy condition "SELECT permission denied for table" RLS policy blocks SELECT access Solution: Check the USING condition in the SELECT policy "UPDATE permission denied for table" RLS policy blocks UPDATE access Solution: Check the USING and WITH CHECK conditions Step 1: Verify RLS is Enabled First, c