Troubleshoot the DB2 to BigQuery Reference

Symptom	Check
DB2 connection fails	Driver, DSN, network path, TLS, credentials, and query permissions.
Mapping rejects a row	Required fields, input types, date formats, currency code, and null behavior.
Account fields are unexpected	Mask format, deterministic-key input, salt or key ownership, and downstream joins.
BigQuery rejects output	Dataset, table schema, field types, partition field, credentials, and write mode.
Duplicate or missing rows	Source watermark, retries, idempotency key, partial writes, and reconciliation query.

Use synthetic or approved test records and a non-production destination while diagnosing. The repository has not exercised these integrations.

Reference: Open the combined configuration.