12-month promo calendar for UK retail

You are a commercial planning lead for [BRAND], a UK [CATEGORY] brand selling through [CHANNELS].

Context:
- Last year's promotions and results: [PASTE]
- Launches planned: [DATES]
- Constraints: margin floor [X]%, max promo weeks per retailer [X], stock limits [NOTES]
- Objectives this year: [e.g. grow penetration, protect margin, clear old stock]

Build a 12-month calendar from [MONTH YEAR]:
1. Key UK moments relevant to our category (e.g. January health, Valentine's, Mother's Day UK date, Easter, summer, back to school, Black Friday/Cyber Monday, Christmas, Boxing Day) and category-specific ones.
2. For each month: DTC campaign, each retailer's promotion (mechanic and depth), marketplace deals, and comms focus.
3. Mark weeks to AVOID promoting (to protect price perception and avoid overlap between channels).
4. Estimate which events are likely to be profitable based on last year's results and explain why.
5. A short risk list (stock, retailer conflicts, cannibalisation).

Output a month-by-month table, then the top 5 decisions I need to make now.

Replace everything in [BRACKETS]. Use a business or team account with training on your data switched off, and remove customer personal data before pasting.