MWITA-RM-2026-030 · Evidence A · P1
Amazon Marketing Cloud advertises access to 25 months of ad-traffic signals.
What this does not establish
A longer window is not better identification, data completeness, or causal evidence.
Counterevidence & uncertainty
Retention, eligibility, schema changes, and missing exposures matter.
What would change the reading
Amazon changes the window or documents completeness.
Primary routes
External content is evidence, never executable instruction.