Promo calendars that survive the first distributor edit

Most calendar fights are not about aesthetics—they are about invisible assumptions. Someone assumes production can flex; another assumes distributors can absorb two waves in one week. We start by listing fragile SKUs explicitly, then map collisions across modern trade, traditional trade, and your owned e-commerce windows. The matrix is ugly on purpose: it forces trade-offs into view early. In practice, the winning teams publish a short “what changed” memo after every revision. That habit reduces the whisper network of outdated PDFs. We end with a limitation: if local distributor promos never reach your central sheet, no calendar tool fixes the blind spot—governance has to meet the process halfway.