What Is the ASC and AAC Deprecation and Does It Affect Your Campaigns?

Meta is consolidating all campaign automation into a single Advantage+ campaign experience. As part of this, the legacy Advantage Shopping Campaigns (ASC) and Advantage Audience Campaigns (AAC) are being retired. If your campaigns are managed manually through Ads Manager, this change may have limited direct impact on your day-to-day workflow. If your campaigns are created or managed programmatically through the Marketing API, your team or agency needs to update how campaigns are built and migrated before Q1 2026. The more important question for marketing teams is not how the migration happens technically but whether your campaigns will have the conversion signal quality they need to perform well in the new Advantage+ structure afterward.

Meta announced that legacy ASC and AAC campaign paths in the Marketing API would be deprecated, with full removal targeted for Q1 2026. For most DTC marketing teams, the technical migration is something your developer or agency handles. But the downstream effects on campaign performance, reporting, and attribution tracking are squarely in marketing's territory.

Understanding what changes, what to ask your technical team, and what to validate after migration is what this guide covers.

What Is Actually Changing

Meta is moving toward a single unified Advantage+ campaign structure across all objectives. The legacy ASC and AAC campaign types were separate paths for creating automated campaigns. Those paths are being retired.

There are two milestones:

For marketing teams, the practical question is: do you have campaigns that were created via the Marketing API and are still running? If yes, those need to be migrated before Q1 2026 or they will stop functioning.

If all your campaigns are created manually in Ads Manager, the direct impact is smaller. Meta is applying similar structural changes through Ads Manager separately, but the hard deadline for API-based campaign migration is the more urgent concern.

What This Means for Your Campaign Performance

This is where marketing teams need to pay attention, because the shift to Advantage+ campaign structure is not just a technical reclassification. It changes how Meta's algorithm manages your campaigns.

Advantage+ campaigns are more automated than legacy ASC and AAC setups. Meta takes more control over audience selection, bidding, and creative delivery. That automation works well when the campaign has high-quality conversion signals to learn from. It works less well when conversion data is incomplete or inconsistent.

In other words, if your ecommerce conversion tracking has gaps before migration, those gaps become more consequential after migration because the Advantage+ structure relies more heavily on that signal for every optimization decision it makes.

What Changes Day-to-Day for Marketing Teams

What to Ask Your Developer or Agency Before Migration

You do not need to understand the API mechanics to ask the right questions. Here are the things marketing teams should confirm before the Q1 2026 deadline.

Have all legacy ASC and AAC campaigns been identified? Your technical team should have a full list of campaigns that were created via the Marketing API and need to be migrated. If they do not have this list yet, ask for it.

What migration approach is being used for each campaign? There are two options: copying a campaign into a new Advantage+ structure with a new ID, or migrating it in place keeping the same ID. The choice affects your dashboards, automated rules, and internal reporting. Ask which approach applies to your highest-spend campaigns and what the downstream effects are.

Are there any campaigns that cannot be automatically migrated? Some campaign configurations require manual handling. Campaigns with certain budget allocation fields and campaigns with large numbers of ads per ad set may fall into this category. Ask your developer to flag these early so there is time to restructure them before the deadline.

What is the timeline for completing migration? The Q1 2026 deadline is the hard cutoff for full deprecation. Migration should be completed and validated well before that, not the week before. Ask for a timeline with milestones rather than a single completion date.

How will reporting be affected? If campaigns are copied rather than migrated in place, they get new identifiers. That affects any dashboard filters, automated rules, or internal tracking that references the old campaign ID. Confirm that your reporting setup has been updated before the old campaigns are archived.

The Campaign Performance Question Nobody Is Asking

Most coverage of this deprecation focuses on the technical migration. The question that matters more for marketing performance is: will your migrated campaigns have the conversion data quality they need to perform well in the Advantage+ structure?

Advantage+ campaigns use conversion signals, specifically your purchase events, to make automated decisions about who to show your ads to, how much to bid, and which creative format to serve. The better and more complete those signals are, the better the automated system performs.

Here is the gap that often gets missed: if your Shopify ecommerce conversion tracking is missing purchase events because browser pixels are being blocked by iOS privacy settings or ad blockers, your campaigns are already optimizing on incomplete data. In a legacy campaign structure with more manual controls, this is a measurement problem. In an Advantage+ campaign structure with more automation, it is a performance problem. The algorithm is making decisions based on what it can see. If what it can see is a partial picture of your actual buyers, it optimizes toward that partial picture.

How to Check Your Conversion Signal Health Before Migration

The fastest check is a simple comparison: pull your Meta Events Manager purchase event count and your Shopify order count for the same date range.

If your gap is above 10 percent, fixing your ecommerce conversion tracking before the campaign migration will have more impact on post-migration performance than the migration itself.

How Server Side Tracking Shopify Connects to This

For Shopify brands, the most direct way to close a conversion tracking gap is server side tracking via the Meta Conversions API. Instead of relying on a browser pixel to fire on the thank-you page after purchase, server side tracking Shopify sends the purchase event directly from Shopify's backend to Meta after the order is confirmed.

This means the event reaches Meta regardless of whether the customer was on iOS, had an ad blocker, or closed the browser before the thank-you page fully loaded. The result is more complete ecommerce conversion tracking and higher Event Match Quality scores in Meta Events Manager, both of which directly improve how Advantage+ campaigns optimize after migration.

Aimerce handles server side tracking Shopify for DTC brands without requiring custom engineering. It connects Shopify's order webhook to Meta's Conversions API, passes hashed first-party identity signals from checkout to improve match quality, applies bot filtering to keep non-human sessions out of your ecommerce events, and automatically deduplicates browser and server events so Meta counts each purchase once. For brands that have been using Elevar or evaluating Elevar alternatives, Aimerce covers the same server side tagging Shopify use case with a more managed setup.

Confirming that server side tracking is active and your conversion data is complete before your campaigns migrate to Advantage+ is one of the most practical things a marketing team can do to protect post-migration performance.

FAQ: ASC and AAC Deprecation for DTC Marketing Teams

What are ASC and AAC campaigns and why is Meta retiring them?

ASC stands for Advantage Shopping Campaigns and AAC stands for Advantage Audience Campaigns. These were legacy automated campaign types created via Meta's Marketing API. Meta is retiring them to consolidate all campaign automation into a single Advantage+ campaign experience across objectives.

Does this affect campaigns created manually in Ads Manager?

The hard API deprecation deadline primarily affects campaigns created and managed programmatically via the Marketing API. If your campaigns are created manually in Ads Manager, your direct exposure to the v25.0 deadline is lower, but Meta is also applying Advantage+ structural changes through the Ads Manager interface separately.

What should DTC marketing teams do right now?

Ask your developer or agency to confirm whether any active campaigns were created via the Marketing API and need to be migrated. If yes, request a migration plan with a timeline that completes well before Q1 2026. Separately, run a conversion signal health check by comparing your Meta Events Manager purchase count to your Shopify order count. Any gap above 10 percent should be addressed before migration.

Why does conversion tracking quality matter for this migration?

Advantage+ campaigns are more automated than legacy ASC and AAC setups. They rely more heavily on conversion signals for audience selection, bidding, and creative delivery decisions. Migrating to Advantage+ with incomplete purchase event data gives the automated system a partial picture of your buyers, which affects how well it can optimize after the transition.

What is the difference between copying and migrating a campaign?

Copying creates a new Advantage+ campaign with a new identifier, leaving the original intact for parallel validation. Migrating upgrades the existing campaign in place while keeping the same identifier. The choice affects your reporting dashboards and automated rules. Ask your developer which approach is being used for your highest-spend campaigns.

How does server side tracking Shopify improve Advantage+ campaign performance?

Server side tracking Shopify sends purchase events from Shopify's backend directly to Meta via the Conversions API, bypassing browser restrictions. This ensures purchase events reach Meta even when browser pixels are blocked by iOS privacy settings or ad blockers. More complete ecommerce conversion tracking means the Advantage+ campaign structure has better signal to optimize against after migration.