PostgreSQL connection issues in Make.com
Updated 2026-08-01
PostgreSQL is another frequent Make.com pain point. Connection failures block every database module; query errors later are a different class. Start by separating "cannot connect" from "SQL failed".
Connection vs query
If Make cannot open the connection (host unreachable, SSL required, wrong password, IP not allowlisted), every Postgres module fails with a connection-class error.
If the connection works but a module fails on INSERT/SELECT, read the database error text — that is closer to DataError / validation territory than ConnectionError.
What to verify
Host, port, database name, user, password, and SSL mode must match what your host requires (many cloud Postgres instances require SSL).
Network: Make runs in the cloud. Localhost and private VPC databases need a tunnel, public access, or a host that allows Make's egress — a laptop Postgres will not work as "localhost" from Make.
Paste the exact error into the free diagnosis when the message is cryptic; access and SSL wording usually beats guessing column mappings first.
Paste the error for a sourced diagnosis
If you still have the execution log, use the free tool — Make's docs only, every claim linked, or an honest refusal when coverage is missing.
Example you can try: PostgreSQL connection in Make fails. Cannot connect to the database host / SSL error.
Official Make documentation
FAQ
Why did it work from my PC but not from Make?
Your PC is on a different network. Make's servers must be allowed to reach the database. Localhost in Make is not your laptop.
Related guides
- ConnectionError in Make.com
- InvalidAccessTokenError and expired Make.com connections
- Why your Make.com scenario suddenly stopped working
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