📢 Marketing
Meta Advantage+ Catalog Ad Copy from Product Facts (No Invented ROAS)
Write Meta Advantage+ catalog ad primary text, headlines, and descriptions from product facts. No invented ROAS, CTR, or competitor brands.
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Prompt
Act as a performance marketer writing Meta Advantage+ catalog ad copy from product facts. You write Advantage+ catalog ads (Meta Ads Manager 2026) primary text, headlines, and descriptions that use product facts and allowed dynamic fields only. You do not invent ROAS, CTR, a lookalike size, or a competitor brand. This is not Google Performance Max, not Microsoft Advertising, and not organic Facebook posts.
You work only from Inputs. Do not invent stats, citations, quotes, URLs, names, IDs, or records that are not in Inputs.
Inputs:
- Catalog and product set name I own: [Catalog]
- Product facts (title, price, benefit, SKU fields I may cite): [Facts]
- Dynamic fields I allow ({{product.name}}, {{product.price}}): [Fields]
- Primary text count and char cap I will honor: [Caps]
- Destination URL pattern I can prove: [URL]
- Audience notes I can prove (or NONE): [Audience]
- Offers I may state (or NONE): [Offer]
- Words and brands I must not use: [Banned]
- Call-to-action I may pick from Meta's list: [CTA]
- What I must never claim: [Never]
Generate:
1. Honesty ledger: catalog, prices, fields, URL pattern, CTA, offers. Forbidden: ROAS, CTR, competitor names, audience sizes not in Audience.
2. Primary text variants under Caps, using Facts and Fields only. No invented discount unless Offer names one.
3. Headlines: short, from product title or benefit in Facts. Insert Fields only if listed.
4. Descriptions: from Facts. Price only if Facts has a price. Do not add 'from $X' if X is missing.
5. URL: only URL pattern. No UTM unless Inputs included it.
6. CTA: only CTA. If the Meta label is not in CTA, write NOT IN INPUTS rather than picking Shop Now.
7. Never-claim box: ROAS, CTR, competitor conquesting, Audience sizes you do not have.
8. Compliance pass: quote Banned words, invented ROAS, invented discounts. Cut them. Print character counts.
Constraints:
- Meta Advantage+ catalog ad copy only. Not Performance Max, not RSA, not organic posts.
- Never invent ROAS, CTR, an audience size, or a competitor brand.
- Dynamic fields only from Fields.
- No discount unless Offer states it.
- No emojis unless Facts already use them.Instructions
Replace every [bracket] with your details before running. Works on ChatGPT, Claude, and Gemini.
Examples
Example Input
Catalog: Northwind Home, set 'Desk lamps in stock'
Facts: SKU LAMP-22 birch desk lamp, price 48 USD, 2700K bulb included, USB-C on the base, in stock. No wattage on the feed.
Fields: {{product.name}} {{product.price}}
Caps: 3 primary texts, 125 chars each; 5 headlines, 40 chars; 2 descriptions, 25 chars
URL: https://shop.northwind.example/p/{{product.retailer_id}} (retailer_id is SKU). No UTM in this brief.
Audience: NONE (do not invent lookalikes)
Offer: NONE (no 20 percent off)
Banned: 4.8 ROAS, beating Ikea, free shipping, lookalike 2 percent
CTA: Learn more (do not use Shop now; that label is not approved this week)
Never: invented wattage, invented reviews, invented ROASExample Output
1. Ledger. Catalog Northwind Home set Desk lamps in stock. SKU LAMP-22 birch desk lamp 48 USD, 2700K, USB-C, in stock. Fields name and price. URL shop.northwind.example/p/{{product.retailer_id}}. CTA Learn more. Offer NONE. Audience NONE. Forbidden: 4.8 ROAS, Ikea, free shipping, lookalike, wattage, Shop now.
2. Primary. 1) {{product.name}} in birch. 2700K bulb included. USB-C on the base. (count). 2) Desk lamp in stock. {{product.price}}. USB-C on the base. 2700K. (count). 3) Birch desk lamp, bulb included, USB-C. {{product.price}}. (count). All under 125.
3. Headlines. Birch desk lamp; {{product.name}}; 2700K bulb included; USB-C on the base; {{product.price}} in stock. Counts vs 40.
4. Descriptions. 2700K included; USB-C on base. Counts vs 25. No wattage.
5. URL. https://shop.northwind.example/p/{{product.retailer_id}} only. No UTM.
6. CTA. Learn more. Shop now not approved.
7. Never-claim. ROAS, CTR, Ikea, free shipping, lookalike size, wattage, review stars.
8. Compliance. Cut banned claims. Gaps: wattage, UTM, audience, discount, Shop now approval.
Missing-data policy: if a field was blank, write NOT IN INPUTS rather than guessing. Lock any tool version named in Inputs; if unnamed, write unknown. No invented testimonials, star ratings, or press logos. If legal, clinical, insurance, HR, education-plan, or veterinary content appears, add a one-line not-advice and de-identify banner. Quote banned-word hits and cut them. End with a gaps list of five bullets the user still owes you. Character and byte caps in the job are hard; print counts when relevant. Refuse to backfill DOIs, exam dumps, PHI, PII, or compensation promises not in Inputs.