Trace one data item through collection, prompts, retrieval, model, output, logs, support and deletion. Name source, people, country, recipients, retention, backups and someone who can test deletion.
Supplier check: identify processors and subprocessors, training or reuse terms, support access, contract, incidents, return or deletion, change notice and exit. Save the dated terms and unresolved questions.
Locate each restricted transfer. Record the applicable adequacy decision or safeguard, assessment and extra protections. Check EU SCCs and UK IDTA or Addendum separately. Revisit overseas support and onward transfers.