Capture opt-in with purposeful checkboxes, not hidden defaults. Sync preferences quickly, reflect them visibly, and offer easy changes at checkout or email footer. Use clear language and respect quiet hours. Transparent choices earn trust and reduce complaints, turning compliance into genuine courtesy that customers notice and tell friends about.
Keep only fields you use, set retention periods, and summarize old records where possible. Separate sensitive identifiers from browsing or receipt details. Write a one-page policy managers can share confidently. When your reasons are simple and fair, audits are calmer and customers feel safer engaging across channels regularly.