A Macie bucket labeled "Not sensitive" often just means Macie never read it. Extensionless objects, unsupported storage classes, unreachable KMS keys and quota truncation all produce silence that looks identical to a clean result. Here's how to measure coverage, fix the four gaps, tune identifiers, and keep the bill honest.
A CV parsing pipeline stops being a parser the moment a score sorts a list. Where Textract and Bedrock actually fit, why redacting names does nothing for bias, and what to document before anyone asks you to explain a ranking.
Three CRM records, one person, and nothing in the logs to explain it. A practical walkthrough of what actually breaks when you unify Shopify, Stripe, CRM and support data: guest-checkout identity, duplicate and out-of-order webhooks, revenue that never ties to payouts, deletion requests that miss half your copies, and reverse ETL write loops. Organized by failure family, with schema and handler patterns you can apply directly.
Most customer sentiment analysis pipelines run perfectly and still produce a number nobody should act on. Here are the failure families that cause it, from labels stamped on the wrong message to averages taken over a scale that was never numeric, plus a pipeline shape and a legal boundary worth knowing before you ship.