Connection test failed
Verify the hostname, port, database, username, password, SSL mode, and network access. For a private database, follow Private database access.Schema discovery returned no streams
Confirm that the source user can read the expected schema or API resources. For Asana, verify the PAT owner can access the selected workspace and projects. For HubSpot and Stripe, verify the required token permissions in the connector reference. For Zendesk, verify that the connection was authorized against the correct core subdomain and that the approving user can read the selected Support resource. Reconnect the account if OAuth access was revoked or expired.Data Preview is empty
Confirm that the selected stream contains records and that the current connection can read them. Refresh discovery before retrying when the source schema changed.SQL validation failed
Check the source reference, selected columns, and SQL syntax. The model output columns must match the pre-created destination table. See SQL Layer.Pipeline Run failed before delivery
Common causes include:- the source table or stream is no longer available;
- source or destination permissions changed;
- the destination table does not exist;
- the SQL output contains a column missing from the destination table;
- Incremental sync is missing a valid replication key; or
- the workspace reached a plan limit.