Quick heads-up on compliance touching our queue. Audits keep calling out sloppy field mapping and thin correction logs. Add a simple control: unique batch IDs, timestamped edits, and reviewer sign-off before export. Fewer discrepancies, cleaner trails.
I’d lock down correction logging with append-only edits per field (old/new, who, when, why), unique batch IDs, and mandatory reviewer sign-off before export. Add a mapping registry and pre-submit validator so fields can’t be remapped or corrected without reason codes. Generate an export manifest with counts and hashes to reconcile. Why: audits get a complete trail, we cut disputes, and we can scale review by sampling high-risk batches. If volume grows, auto-flag outliers (edit spikes, repeat editors), rotate reviewers, and track metrics (edit rate, time to sign-off).
Yup — add a mapping version tag and before/after snapshots with a required reason code per edit, and hash the original payload so you can prove integrity later. Batch ID + sign-off is good, but make the log append-only and block self-approval to cover the 4‑eyes control.
Adding an export manifest with the batch_id, mapping_version, a SHA‑256 of the raw payload, and a link to the append‑only edit log made our last ISO audit painless. We push the logs to S3 with Object Lock (WORM) for 7 years, so we can prove nothing was altered after review.