Moving an Airtable system to Supabase
When Supabase is the chosen destination, I make the database schema, grants, row-level policies, API access, and attachment storage explicit. I then check access with the intended users and anonymous requests. Moving the data alone does not recreate the surrounding workflow.
I use this reference example to explain the method and checks to try. It includes no client names, schemas, data, or reported results.
What do I check when moving an Airtable system to Supabase?
When Supabase is the chosen destination, I make the database schema, grants, row-level policies, API access, and attachment storage explicit. I then check access with the intended users and anonymous requests.
Method
- Create the schema from the field mapping, with grants written in the same migration as the tables.
- Enable row-level security on every table and write policies from the permission parity work.
- Move attachments into Supabase Storage with a bucket policy that matches the table policy.
- Replace Airtable API consumers with PostgREST calls or server functions, and rotate the old keys.
- Recreate scheduled automations with pg_cron or an external scheduler calling a verified endpoint.
create table public.invoices (
id uuid primary key default gen_random_uuid(),
org_id uuid not null,
airtable_record_id text unique,
amount numeric(14,2) not null,
created_at timestamptz not null default now()
);
grant select, insert, update, delete on public.invoices to authenticated;
grant all on public.invoices to service_role;
alter table public.invoices enable row level security;
create policy "org members read own invoices"
on public.invoices for select to authenticated
using (org_id = (select org_id from public.memberships where user_id = auth.uid()));What can go wrong
- Creating tables without grants, so the API returns permission errors that look like RLS problems.
- Storage buckets left public while the table is locked down.
- Old Airtable personal access tokens left active after cutover.
Checks to try
- Anonymous requests are refused on every table that should be private.
- A storage object is unreachable for a user who cannot read its row.
Questions this pattern answers
What do I check when moving an Airtable system to Supabase?
When Supabase is the chosen destination, I make the database schema, grants, row-level policies, API access, and attachment storage explicit. I then check access with the intended users and anonymous requests.
What steps does this method use?
Create the schema from the field mapping, with grants written in the same migration as the tables. Enable row-level security on every table and write policies from the permission parity work. Move attachments into Supabase Storage with a bucket policy that matches the table policy. Replace Airtable API consumers with PostgREST calls or server functions, and rotate the old keys. Recreate scheduled automations with pg_cron or an external scheduler calling a verified endpoint.
How can I check the result?
Anonymous requests are refused on every table that should be private. A storage object is unreachable for a user who cannot read its row.
What can go wrong with this approach?
Creating tables without grants, so the API returns permission errors that look like RLS problems. Storage buckets left public while the table is locked down. Old Airtable personal access tokens left active after cutover.
Related patterns
Inspecting Airtable dependencies →
The inventory includes forms, scripts, automations, and people’s work.
Preserving Airtable linked records →
Relationship checks compare linked records across systems.
Mapping Airtable automations and scripts →
Each automation has a documented trigger and target.
Checking access after an Airtable migration →
Access checks compare what each person can read and change.
I explain this method here. The Airtable Rescue Decision Sprint can recommend staying, repairing, connecting tools, or migration. TechTide AI publishes current scope, prices, and terms.
Airtable Rescue Decision Sprint at TechTide AI→© 2026 Alex Cinovoj · TechTide AI · Columbus, OH