ConnectionError in Make.com
Updated 2026-08-01
ConnectionError means Make could not use the connection for that module — credentials, network to the provider, or permission. It is a different family from BundleValidationError.
Typical causes
Expired or revoked OAuth, wrong API key after a rotation, IP allowlists on the remote system, or a connection created for a different environment (sandbox vs production).
401 and 403 in the log often travel with this family. Treat them as access problems first.
First moves
Reauthorize or recreate the connection, test the module alone, then re-enable the schedule.
If only one module fails while others using the same connection work, compare required scopes for that module.
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: ConnectionError on the HTTP module. The scenario cannot use the connection anymore.
Official Make documentation
FAQ
Can a bad mapping look like ConnectionError?
Rarely. Mapping problems usually surface as validation or data errors. If you see ConnectionError, fix access before rewriting field maps.
Related guides
- InvalidAccessTokenError and expired Make.com connections
- Why your Make.com scenario suddenly stopped working
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