> Quick answer: TikTok limits product titles to 40 characters and selling points to 25 characters each. Lead with your core benefit, keep the tone casual, and let TikTok auto-generate ad variations from your inputs. Every word has to earn its spot.
TikTok ads live or die by the first line. Tight character limits mean there is no room to waste. Here is how to write product copy that actually converts.
Understand TikTok Ad Copy Limits and Structure
Per TikTok Ads Manager documentation, character limits are firm. Know them before you write a single word.
Product title limits in ads (40 characters recommended)
In TikTok's product information feature, your product title maxes out at 40 characters. That is roughly six to eight words. Make every one count.
Selling points character limits (0-25 characters per point)
Each selling point allows up to 25 characters. You can add up to 10 selling points total. Short, punchy phrases only.
Headline vs. selling points vs. product description roles
The headline hooks attention. Selling points stack the value fast. The catalog description handles the full detail, up to 20,000 characters.
How TikTok auto-generates ad variations from your inputs
Per TikTok Ads Manager guidance, the platform uses your title, selling points, and images to automatically generate multiple ad versions. More detail in means better variations out. Giving TikTok strong inputs is one of the highest-leverage things you can do.
Identify Your Product's Core Benefits and Value Props
Start with your customer, not your product spec sheet.
List 3-5 key features that differentiate your product
Write down what makes your product stand out. Speed, price, design, results. Pick the top five before you write anything.
Translate features into audience benefits (why they matter)
A feature is "water-resistant." A benefit is "Stays dry in the rain." Benefits convert. Features only inform.
Match benefits to audience intent on TikTok
TikTok users scroll fast and want discovery. Your copy needs to match that pace. Lead with what solves their immediate problem.
Prioritize what fits in 25 characters per selling point
"Free shipping" fits. "Ships in 24 hrs" fits. "Free worldwide shipping on every single order" does not. Prioritize ruthlessly.
Draft Compelling Headlines and Selling Points
Good TikTok ad copy sounds like a friend giving advice, not a brand pushing a sale.
Hook first: lead with the main benefit or outcome
Put your biggest benefit in the first line. Do not bury the lead under setup.
Use plain language and casual tone (avoid jargon)
Write like you talk. "Keeps coffee hot for 12 hours" beats "advanced thermal retention technology" every time.
Test benefit-driven angles (e.g., savings, transformation, social proof)
Try multiple angles across ad sets. Savings: "Cut your bill in half." Transformation: "Clear skin in 30 days." Social proof: "500K happy customers." TikTok ad best practices recommend testing several value proposition angles before settling on one.
Apply emojis strategically (sparingly, relevant only)
One or two relevant emojis can lift attention. A line of six kills credibility. Use them like seasoning, not decoration.
Keep CTAs conversational, not pushy
"Shop now" works. "BUY BEFORE IT'S GONE!!!" does not. Calm, confident CTAs convert better on TikTok.
Write a Catalog Product Description (Up to 20,000 Characters)
The catalog description is your full product file. TikTok's catalog best practices state descriptions can reach 20,000 characters, but quality still matters more than length.
Include all specifications, materials, dimensions, shipping info
Shoppers check size, material, weight, color options, and shipping policy. Fill in every field that is relevant to your product.
Lead with key information that will be captured if truncated
TikTok may cut off your description in display. Put the most important details in the first two sentences. Always.
Maintain consistency with your landing page
Per TikTok's catalog guidelines, product data must match your landing page. TikTok uses web scraping to verify accuracy. Mismatches hurt delivery and can flag your account.
Avoid spelling errors, exaggerated claims, and special characters
TikTok's documentation states spelling mistakes, exaggerated claims, and unrecognizable symbols like ®, ™, and © may result in product disapproval. Proofread before every upload.
Maintain Brand Voice Across All Copy
Every line should sound like your brand, not a generic ad template.
Ensure headlines, selling points, and descriptions sound like your brand
Inconsistent tone confuses buyers. Playful brand. Keep it playful in the headline, in the selling points, and in the description.
Use consistent language, tone, and value messaging
Pick three or four key phrases that define your brand. Use them across all ad copy, across all channels.
Test copy variations on different audience segments
Different audiences respond to different angles. Test benefit-driven versus social-proof-led copy. Track what lands with each segment and build on it.
Review and align all copy before uploading to TikTok Ads Manager
One final review catches tone drift and errors before they go live and cost you spend.
Optimize and Iterate
Copy that works today can plateau next month. Plan to keep improving it.
Monitor performance of different selling points and headlines
Watch which selling points drive clicks. Which headlines keep people watching. Double down on winners and cut what underperforms.
Refresh copy when audience feedback suggests new angles
Comments and saves are signals. If a pain point keeps coming up in comments, write directly to it in your next copy test.
Use A/B testing within TikTok's product information feature
TikTok generates variations from your inputs automatically. Review which versions perform best and refine your inputs from there. More specific selling points usually outperform vague ones.
Revise copy if landing page changes
Update your ad copy whenever your landing page changes. Consistency between your ad and destination page protects delivery quality and buyer trust.
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Frequently Asked Questions
What is the character limit for a product title in TikTok Ads Manager?
TikTok's product information feature limits product titles to 40 characters. For catalog uploads, titles can be up to 150 characters, but in-ad display titles follow the 40-character limit.
How many selling points can I add to a TikTok ad, and how long can each one be?
You can add up to 10 selling points in TikTok Ads Manager. Each selling point is limited to 0-25 characters. Keep them short and benefit-driven.
What characters are not allowed in TikTok product descriptions?
Per TikTok's catalog guidelines, special characters like ®, ™, and © are not recommended and may cause product disapproval. Exaggerated claims and spelling mistakes can also flag your listing.
How long can a TikTok catalog product description be?
TikTok catalog product descriptions can be up to 20,000 characters. Lead with your most important information in case the description is truncated in display.