How Social Media Ads Work: A-Z Guide for Nigerians

How Social Media Ads Work: The Basic Flow

No matter the platform, the process follows a similar pattern:

1. You create an ad in the platform’s ad manager (e.g., Meta Ads Manager, TikTok Ads Manager, Google Ads).

2. You set:

   • Your goal (e.g., more website visits, WhatsApp messages, sales)

   • Your budget (daily or total)

   • Your audience (who should see it)

   • Your bid strategy (how you want to pay)

3. You upload your creative (image, video, text, call-to-action).

4. You click “Publish” (or “Submit”).

5. The platform reviews your ad (usually within minutes to 24 hours) to ensure it follows rules.

6. Once approved, your ad enters the auction system and starts showing to people in your chosen audience.

What Happens Behind the Scenes When You Click “Publish”?

Many advertisers don’t realize there’s a lot happening after they hit “Publish”:

1. Ad Review

Your ad goes through an automated (and sometimes human) review to check:

• Does it follow community and advertising policies?

• Is the landing page working and relevant?

• Are there any prohibited claims (e.g., “get rich quick”, fake health claims)?

If it fails, you get a notification and must edit and resubmit.

2. Learning Phase

Once approved, the platform’s AI starts testing your ad:

• Showing it to different people within your audience

• Tracking who clicks, who ignores, who converts

• Adjusting who sees it based on early performance

This is why results can be unstable in the first few days. The system is “learning”.

3. Entering the Auction

Every time there’s a chance to show an ad (e.g., someone scrolls their feed), the platform runs a real-time auction among all eligible ads.

Your ad competes based on:

• Your bid

• Your ad’s estimated action rate (how likely the person is to take your desired action)

• Your ad’s quality and relevance

• The context (time, device, location, etc.)

The ad with the highest total value score wins that impression.

4. What Happens When You Make Changes?

If you edit your ad significantly (creative, audience, objective, budget), the system may:

• Restart the learning phase

• Re-evaluate your ad in the auction

• Temporarily reduce delivery while it re-learns

This is why constant small changes can hurt performance. It’s often better to test new ads in separate campaigns or ad sets.

How Social Media Ad Algorithms, Scores, and Auctions Work

A common myth is: “The highest bidder always wins.” That’s not entirely true. Platforms care about user experience. If they only showed ads from the highest bidders, feeds would be full of low-quality, annoying ads, and people would leave the platform (which is the number 1 thing these platforms are trying to avoid).

So they use a value-based auction: Total Value= Bid + Estimated Action Rate + Ad Quality

Meta (Facebook & Instagram) Ads: How the Algorithm Decides Who Sees Your Ad

Meta’s system has evolved a lot. In 2025–2026, major updates include Andromeda, Lattice, and the Generative Recommender.

1. Andromeda: The Retrieval Engine

When someone opens Facebook or Instagram:

• Meta first pulls a huge pool of ads that could be shown to that person (from millions of active ads).

• Andromeda narrows this down to a few thousand strong candidates using signals like:

  • Past behaviour (what they click, watch, buy)

  • Ad creative signals (image, video, text)

  • Historical performance of the ad

  • Advertiser quality signals

Importantly, Andromeda now analyses your creative directly (images, video pacing, on-screen text, tone) to predict who will respond, not just your audience settings.

2. Lattice & Ranking: Scoring Ads

From the shortlist, Meta’s ranking system scores each ad using:

• Bid (how much you’re willing to pay)

• Estimated action rate (likelihood of click, purchase, etc.)

• Ad quality and relevance (based on engagement, feedback, creative quality)

The ad with the highest combined score wins the slot.

3. Creative-Based Targeting (2026 Reality)

In 2026, Meta treats your manual audience settings (interests, demographics) more as suggestions than strict rules. The algorithm often shows your ad outside your defined audience if the creative signals suggest a better match.

This means:

• Your creative quality now does much of the “targeting” work.

• Broad audiences often perform better than narrow, over-segmented ones.

• Testing different creatives is more important than obsessing over tiny audience tweaks.

TikTok Ads: How the Algorithm Works

TikTok also uses a real-time auction, ranking ads based on:

• Bid amount

• Ad relevance (how well the ad matches user interests and behaviour)

• Expected engagement (likes, shares, comments, clicks)ads.

TikTok’s system is highly driven by content quality and watch behaviour. If users often watch your video to the end, engage, or click, TikTok will show it to more similar users.

TikTok also offers Smart Targeting, where the system observes performance and may show your ad to people outside your initial audience if they’re more likely to convert. (source: ads.tiktok )

Google Ads: Ad Rank and Quality Score

Google Ads (for Search, YouTube, Display) works a bit differently but follows the same principle: quality matters as much as bid.

Ad Rank

Your ad’s position is decided by Ad Rank, which depends on:

1. Your bid

2. Ad and landing page quality (evaluated in real time)

3. Ad Rank thresholds (minimum quality bars)

4. Auction competitiveness

5. Search context (device, location, time of day)

6. Expected impact of ad assets (extensions, images, etc.)

Quality Score (1–10)

Quality Score is a diagnostic (not directly used in the auction) that summarizes:

• Expected CTR (how often people click your ad)

• Ad relevance (how well your ad matches the search query)

• Landing page experience (how useful and relevant your page is)tryovertime+2

A higher Quality Score usually means:

• Lower cost per click

• Better ad positions

• More frequent ad delivery