You already have the proof this works. A post is sitting in your TikTok feed with real comments, real shares, and a completion rate you didn’t have to pay for, and you want to put money behind it without losing any of that.
That’s what a Spark Ad does. It doesn’t rebuild the post as a new ad, it authorizes the post itself to carry paid reach, so the engagement it earns while running as an ad lands on the same post people already found on their own.
Getting there just means authorizing the video first, then attaching it in Ads Manager. Which authorization path you use depends on whether it’s your own post or a creator’s, covered step by step below.
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Key Takeaways
- Boosting your own post needs no authorization code, just a linked TikTok account inside Ads Manager.
- Boosting a creator’s post needs a video authorization code, generated on their end through the video’s Ad Settings.
- A creator picks a duration of 7, 30, 60, or 365 days before sharing the code, per TikTok’s documentation.
- Advertisers enter that code in Ads Manager under Tools, Creative Library, Spark Ads Posts, Apply for Authorization.
- A third method exists for agencies and teams: pushing new posts from Ads Manager to accounts already linked through TikTok Business Center, skipping the one-off code exchange.
- You can batch-authorize up to 20 video codes at once.
- Per TikTok’s documentation, Auction-buying Spark Ads support Reach, Traffic, Video Views, Community Interaction, App Promotion, Conversions, Lead Generation, and Sales objectives; Reach & Frequency buying supports Reach, Traffic, and Video Views only.
- Once a post is authorized, its caption can’t be edited, and a private video automatically becomes public for the length of the promotion.
Quick Answer
To turn a TikTok video into a Spark Ad, authorize the post first, then attach it in Ads Manager. Your own posts just need a linked TikTok account. A creator’s post needs a video authorization code, which the creator generates from the video’s Ad Settings and shares with you to enter under Tools, Creative Library, Spark Ads Posts, Apply for Authorization.
What Is Video Authorization for Spark Ads?
Video authorization is TikTok’s permission system for running an organic post as a paid ad. It confirms who owns the content and for how long an advertiser can promote it.
TikTok’s own Spark Ads creation documentation, there are three ways a video gets authorized: linking your own account during campaign setup, a creator sharing a personal video code, or an advertiser pushing a new post to an account already linked through TikTok Business Center.
The post itself doesn’t change. What changes is that TikTok now allows ad spend to run behind it while its original engagement, likes, comments, shares, and follows, stays attached to the post itself, per TikTok’s Spark Ads documentation.
If you want the fuller comparison between this format and a standard, non-Spark ad, see our Spark Ads vs Non-Spark Ads breakdown.
Before You Start: You Need Ads Manager Access
Every path below assumes you already have Ads Manager access set up, which generally means a TikTok Business account. If you don’t have one yet, that’s a separate first step, see our guides on what a TikTok Business account is and how to create one before coming back here.
The Three Ways to Authorize a Video for Spark Ads
TikTok’s documentation lays out three distinct paths, and which one applies depends on whose post you’re boosting and how your accounts are set up.
Path 1: Your Own Post, Linked Directly
If the video is posted from your own account, no authorization code is needed. Per TikTok’s documentation, you simply link that TikTok account, your in-house organic account, or a creator’s account during campaign setup.
Inside Ads Manager, during ad creation, link the TikTok account to the campaign. Open the TikTok posts tab, select the specific video, and click Confirm. That post is now attached to your ad group.
Path 2: A Creator’s Post, Authorized by Code
Boosting someone else’s organic post requires their authorization first. The creator controls this, not the advertiser.
Step 1: The creator generates the code
The creator opens their posted video in the TikTok app, tap the three dots, and select Ad Settings. They toggle on Ad authorization, then choose 7, 30, 60, or 365 days, as stated in the TikTok’s documentation. TikTok doesn’t publish a standard default among these options, so confirm the chosen window directly with the creator. The app generates a video code, which the creator copies and shares with you.
Step 2: The advertiser applies the code
In Ads Manager, go to Tools, then Creative Library, then Spark Ads Posts, then Apply for Authorization. Enter the code the creator shared. Ads Manager supports batch authorization of up to 20 video codes in a single pass.
One requirement worth checking before you ask a creator for a code: per TikTok’s documentation, “Authorized Posts” must be allowed within that creator’s own TikTok app settings. If it’s toggled off on their end, the authorization flow won’t work.
Path 3: Pushing Posts Through TikTok Business Center
Per TikTok’s documentation: “You can push new posts from TikTok Ads Manager to a selected identity (TikTok account) authorized through TikTok Business Center.” That’s a third path, separate from exchanging a one-off video code each time.
This is the more efficient option for agencies or in-house teams managing multiple creator or brand accounts on an ongoing basis, since the account-level link stays in place instead of re-authorizing post by post. TikTok’s documentation doesn’t spell out every setup detail for this method beyond confirming it depends on the accounts being linked in Business Center first, so if this is a fit for your setup, TikTok’s Business Center help documentation is the place to confirm the exact linking steps.
What Changes Once a Post Is Authorized
A few things lock in the moment a post becomes a Spark Ad, and they’re easy to miss the first time.
You can’t edit the caption after authorization. Whatever text is on the post when you authorize it is what runs in the ad.
If the video was private, it automatically becomes public once it’s used in the campaign, and per TikTok’s documentation, “the video privacy status cannot be changed during promotion.” Don’t authorize a video you’re not ready to have public for the full campaign window.
Video codes can only be deleted once every ad using that code has been removed. Plan authorization timing with that in mind, especially for time-sensitive campaigns.
TikTok’s documentation doesn’t address whether an active authorization can be revoked early by the creator, so treat the chosen duration as fixed once it’s granted.
Which Campaign Objectives Support a Spark Ad Made This Way
Once a post is authorized, it doesn’t work with every campaign type. Per TikTok’s Spark Ads documentation, the supported objectives depend on the buying type.
Auction buying supports Reach, Traffic, Video Views, Community Interaction, App Promotion, Conversions, Lead Generation, and Sales.
Reach & Frequency buying is narrower, supporting Reach, Traffic, and Video Views only.
Confirm your objective is on this list before you build the rest of the campaign around an authorized post.
Choosing Which Organic Post to Turn Into a Spark Ad
Not every post is worth boosting. The strongest candidates already show real signal before you spend a dollar on them.
Look for a post with watch time and completion rate you’d be comfortable scaling, genuine comments rather than emoji spam, and a topic or hook that’s still relevant to what you’re currently selling.
TikTok doesn’t publish a rule on how much organic history a post needs before it’s a good Spark Ad candidate. As a practical starting point, a post with a few weeks of steady, real engagement behind it gives you more to evaluate than something posted yesterday with no data yet, treat this as a working guideline, not a documented TikTok requirement.
If you’re weighing this decision against building fresh ad creative from scratch, our UGC ads guide covers how to plan creator content for both organic and paid use from the start.
Common Mistakes When Authorizing a Video for Spark Ads
Letting the authorization window expire mid-campaign. TikTok’s documentation doesn’t specify exactly what happens to a live Spark Ad once its authorization period ends, so don’t assume it keeps running. Make sure the authorization window covers your full planned campaign duration, and track expiration dates the same way you’d track any other campaign deadline, especially on shorter 7 or 30-day codes.
Authorizing a post you plan to edit. Since the caption locks once authorized, finalize your caption before you generate or apply the code, not after.
Assuming a private video can stay private. If a creator’s video is set to private, confirm they’re comfortable with it going public for the campaign, since that’s a real change to their content, not just a backend setting.
Skipping the “Authorized Posts” check. If a creator’s account has that setting turned off, your authorization attempt won’t go through no matter how correctly you enter the code. Confirm this with the creator before you build a campaign around their content.
Picking an objective the buying type doesn’t support. Reach & Frequency campaigns only support Reach, Traffic, and Video Views. If your goal is conversions or lead generation, you need Auction buying instead.
Frequently Asked Questions
How do I turn a TikTok video into a Spark Ad?
Authorize the post first, then attach it inside Ads Manager. There are three ways to do this: link your own TikTok account for your own posts, get a video authorization code from a creator for their posts, or push a post from Ads Manager to an account already linked through TikTok Business Center.
Do I need a Spark code to boost my own TikTok posts?
No. You only need to link that TikTok account during campaign setup. The authorization code requirement applies specifically to boosting a creator’s post, not your own.
How long does a Spark Ad authorization code last?
Per TikTok’s documentation, creators choose 7, 30, 60, or 365 days when generating the code. TikTok doesn’t publish a default among these, so confirm the specific window with the creator.
Can I edit the caption after turning a post into a Spark Ad?
No. Once a post is authorized, its caption is locked for the length of the promotion.
What happens if the original video is private?
It becomes public once it’s used in the campaign, and its privacy status can’t be changed again until the promotion ends.
Can I authorize multiple creator videos at once?
Yes. Ads Manager supports batch authorization of up to 20 video codes in a single pass.
Which campaign objectives work with an authorized Spark Ad?
Per TikTok’s documentation, Auction buying supports Reach, Traffic, Video Views, Community Interaction, App Promotion, Conversions, Lead Generation, and Sales. Reach & Frequency buying only supports Reach, Traffic, and Video Views.
Does turning a video into a Spark Ad cost more than a regular ad?
TikTok’s documentation doesn’t publish a separate price or fee for Spark Ads versus standard ads. See our TikTok Ads cost guide for the account-level budget minimums that apply to every campaign type.
Can a creator revoke authorization before it expires?
TikTok’s documentation doesn’t address early revocation. Treat the duration a creator selects when generating the code as fixed for that campaign.
Wrapping Up
Turning an organic post into a Spark Ad comes down to matching the right authorization path to the post: your own account needs a link, a creator’s post needs a code, and a Business Center-linked account can skip the code entirely by pushing the post directly.
The details that trip people up aren’t the setup steps themselves, they’re the side effects: locked captions, forced-public privacy, authorization windows that quietly expire mid-campaign, and objectives that don’t match your buying type.
Pick a post with real organic traction behind it, confirm the authorization terms with the creator up front, and the setup itself is straightforward.
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