How to Use Custom Labels for Better Ad Performance

In the world of product feed management, there is one attribute that is often overlooked but holds the key to advanced ad performance: the Custom Label.

While attributes like title and price are mandatory for the "machine" to understand your products, Custom Labels (custom_label_0 through 4) are for the marketer. They allow you to inject your own business intelligence into your feeds, enabling you to segment, bid, and report in ways that standard ad platforms don't allow by default.

In this guide, we will explore why custom labels matter and share five pragmatic strategies to use them effectively today.

What Are Custom Labels?

Custom labels are five optional fields provided by platforms like Google Merchant Center and Meta Commerce Manager. They don't affect how your product looks to the user, but they are incredibly powerful for product feed segmentation.

Think of them as "tags" that follow your products into the ad auction. Because they are user-defined, you can use them to store any data point that is relevant to your business strategy.

5 Strategic Ways to Use Custom Labels

1. Margin-Based Bidding (The Profitability Label)

The most common mistake in Shopping ads is bidding the same amount for a $100 product with a 10% margin as you do for a $100 product with a 50% margin.

• Strategy: Assign products to labels like low_margin, mid_margin, and high_margin.
• Action: In your ad campaign, increase your ROAS target for the low-margin products and decrease it for high-margin ones to capture more volume.

2. Price Brackets (The Psychology Label)

Users behave differently depending on price points.

• Strategy: Create price brackets like under_25, 25_to_100, and over_100.
• Action: Use these labels to create separate ad groups or to analyze performance. You might find that your "under $25" products have a much higher conversion rate but lower total value.

3. Performance Tiers (The Zombies vs. Heroes Label)

Not all products are created equal. Some items drive 80% of your revenue while others just consume budget.

• Strategy: Use labels to tag products as best_seller, seasonal, or zombie (products that get clicks but no sales).
• Action: Exclude "Zombies" from your main campaigns to save budget, and move "Best Sellers" into a high-priority campaign.

4. Shipping and Logistics (The Bulky Label)

If some of your products are expensive to ship, they might be dragging down your overall profitability.

• Strategy: Tag products as standard_shipping or oversized_bulky.
• Action: In Meta Ads, you can choose to only show "Standard" products in your broad-reach campaigns to keep acquisition costs low.

5. Inventory and Stock Status (The Clearance Label)

When you need to move stock fast, you need a way to tell your ad platform to prioritize those specific items.

• Strategy: Use labels for new_arrival, clearance, or last_chance.
• Action: Build a specific "Clearance Sale" campaign that only targets products with the clearance label.

How to Set Up Custom Labels Without Coding

The old way of setting up custom labels was to manually add them to your ecommerce backend or ask a developer to write a custom script. This is slow and prone to error.

The modern way is to use transformation rules in a feed management tool.

Instead of hard-coding a label, you create a piece of logic:

• Logic: "If Price is greater than 100, set custom_label_0 to 'Over $100'."
• Benefit: As your prices change, your labels update automatically. Your ad campaigns stay in sync with your reality.

How 42feeds Makes Custom Labels Simple

At 42feeds, we believe that advanced strategy shouldn't require an advanced degree.

• Rule-Based Labels: Our transformation engine is built for segmentation. You can build all five strategies mentioned above in less than 15 minutes.
• Dynamic Updating: Our platform monitors your source data. When a product moves from a 40% margin to a 10% margin due to a sale, the label can update automatically.
• Live Preview: See exactly which products are assigned to which labels before you send the data to Google or Meta.
• Pragmatic Free Tier: You can start building your custom label strategy today for free. Our 2-import/2-export free tier gives you full access to our rule engine.
• Accessible Pricing: We bring enterprise-level segmentation to startups and small agencies at a price that actually makes sense.

Summary

Custom labels are the bridge between your business goals and your ad performance. They turn a generic feed into a strategic asset. By moving from a one-size-fits-all bidding strategy to a segmented, label-driven approach, you build a more resilient and profitable ecommerce operation.

If you are ready to stop guessing and start segmenting, 42feeds provides the calm, clear tools you need to master your custom labels.