Cross-Platform Posting Map Builder
Turn a content roadmap into a review-ready posting map with clear assignments, gaps, and clarification flags.
Customise & copy
Add the context you have. The prompt updates as you work.
Paste the roadmap, including themes, key messages, audiences, calls to action, and dates where available.
List only the platforms approved for distribution.
Provide available dates, times, time windows, or existing platform-slot assignments.
Include character limits, prohibited topics, approval requirements, frequency rules, or other distribution constraints.
Live prompt
4 fieldsConvert the provided roadmap into a practical cross-platform posting map. Use only the information supplied in these inputs: Roadmap: {{roadmap}} Selected platforms: {{platforms}} Proposed posting slots: {{posting_slots}} Platform constraints or content rules: {{constraints}} Return only the following fixed-format review document: 1. POSTING MAP Create one table row for every planned roadmap item. Use these columns in this exact order: Item ID | Theme | Key message | Audience | Call to action | Roadmap date | Assigned platform | Proposed posting slot | Status or notes Preserve the roadmap's meaning and wording where practical. Assign items only to the provided platforms and proposed slots. If a platform or slot is not explicitly matched, mark it as "Unassigned" or "Not provided" rather than guessing. Include incomplete or unscheduled items in the table. Label unknown, missing, conflicting, or ambiguous information clearly. 2. REVIEW FLAGS Use a separate table with these columns: Item ID or theme | Flag type | Evidence from roadmap | Required human clarification List every missing date, gap, duplicate or substantially overlapping theme, unclear audience, missing call to action, platform or slot conflict, constraint issue, and other item requiring human review. Do not invent details or resolve ambiguity without evidence. If no issues are found, write "None identified". 3. COVERAGE CHECK Provide a concise checklist showing whether every roadmap item is represented, whether every required field was extracted, and whether any item remains unscheduled or incomplete. Use only: "Yes", "No", or "Partly", with a short evidence note. Do not rewrite the roadmap as social copy. Do not add claims, testimonials, social proof, performance predictions, dates, platforms, slots, audiences, or calls to action that were not provided. Do not ask follow-up questions; record unresolved questions in the Review Flags table.
Proof before you use it
A real example
Tested on gpt-5.6-luna on 2026-09-08
{
"roadmap": "Autumn public health nonprofit campaign roadmap:\n1. September 5 — Theme: Vaccination access. Key message: Local mobile clinics make seasonal vaccination easier to reach for rural families. Audience: Rural parents and caregivers. CTA: Find a nearby clinic.\n2. September 19 — Theme: Volunteer recruitment. Key message: Community volunteers can support clinic check-in and outreach. Audience: Adults interested in local service. CTA: Sign up for an orientation.\n3. October — Theme: Health information literacy. Key message: Checking the source and date of health information can help people make informed decisions. Audience: Community educators. CTA: Download the workshop toolkit.\n4. Date missing — Theme: Partner recognition. Key message and CTA not supplied. Audience: Local donors and partners.",
"platforms": "Facebook page; community radio website; monthly donor email",
"constraints": "Use plain-language public health wording. Do not imply guaranteed health outcomes. Radio website submissions need editorial approval one week in advance. Donor emails may include one link only.",
"posting_slots": "September 6 — Facebook page\nSeptember 20 — Community radio website\nOctober 7 — Monthly donor email\nNo slot currently proposed for the partner recognition item"
}A small ritual that works
How to use it
- 01Paste the complete content roadmap, including themes, messages, audiences, calls to action, and dates where available.
- 02List the approved platforms for distribution.
- 03Add proposed posting dates, times, time windows, or existing platform-slot assignments.
- 04Include any platform constraints or content rules that should be reviewed.
Why it works
It converts a roadmap into a consistent three-part review document: a row-based posting map, a separate issue table, and a coverage checklist. It preserves supplied themes, messages, audiences, calls to action, dates, platforms, and slots while marking incomplete information instead of inventing it. It also surfaces practical issues such as missing dates, approval timing, platform constraints, ambiguous assignments, and incomplete roadmap fields.
Where it fails
It can fail when a roadmap or posting-slot description implies a possible assignment without explicitly matching an item to a platform or slot. In that situation, the prompt may present the item as partially assigned instead of using exactly "Unassigned" or "Not provided". It can also produce inconsistent coverage reporting when an item has a proposed but incomplete slot, or when a constraint requires timing confirmation that is not itself a missing roadmap field.
Customisation tips
Define the roadmap structure clearly, including a stable item ID, theme, key message, audience, call to action, and date for each item. Make platform and slot assignments explicit rather than listing general availability. State approval lead times, character limits, link limits, frequency rules, and prohibited content in the constraints field. If exact dates are required, avoid month-only dates and label any tentative timing consistently.
Watch-outs
- Keep platform names specific when multiple profiles or channels exist, such as a company page versus an executive profile.
- Use explicit placeholders such as "Unassigned" and "Not provided" for unmatched platforms and slots.
- Do not treat a month-only roadmap date as an exact publication date without clearly flagging the ambiguity.
- Separate a roadmap date from a proposed posting slot so timing differences remain visible.
Works in
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