Happy Monday, friends. Another week, another round of platform changes that range from "oh that's actually useful" to "cool, more things I didn't ask for." Let's get into it.

Google Ads Experiments Now Auto-Apply Winning Variants by Default

This one deserves your attention first.

Google Ads experiments will now auto-apply winning results by default. Meaning if you set up an experiment and a variant "wins" based on Google's guardrails, it gets applied. Automatically. Without you pressing the button.

Why this matters to you: On one hand, this is a time-saver if you're someone who runs experiments and then forgets to check on them for three weeks. On the other hand, and this is the hand I'd pay more attention to, auto-applying means Google is deciding what "winning" looks like based on their metrics and confidence thresholds, not necessarily yours. Maybe your experiment technically "won" on clicks but you were really watching cost-per-acquisition. Maybe the statistical significance wasn't what you'd have wanted before rolling it out.

My honest take: go into your experiments right now and make sure you understand this default. If you're the type of advertiser who likes to review results and make the call yourself (which... you should be), you'll want to toggle this off. It's not a bad feature, IMO. It's a bad default.

Google Adds Channel Performance Timeline View to PMax

Here's one I like. Google has added a channel performance timeline view to PMax campaigns, giving you a breakdown of how your PMax performance looks across Search, YouTube, Display, and other channels over time.

Why this matters to you: If you've ever squinted at PMax reporting and thought "I genuinely have no idea where my money is going this week versus last week," this is for you. Seeing channel-level performance as a timeline rather than a static snapshot is actually useful for spotting when PMax decides to go on a Display spending spree or suddenly pulls back from Search. It won't give you full control (this is still PMax, after all), but it gives you better visibility, and visibility is the first step toward actually understanding what's happening in the black box.

Not a game-changer, but a genuinely helpful reporting improvement. We'll take it.

Google Expands Merchant Center Loyalty Features to 14 Countries + AI Surfaces

Google is expanding Merchant Center loyalty features to 14 countries, and loyalty perks are now showing up in Gemini and AI Mode for the first time.

Why this matters to you: If you're running an ecommerce brand with any kind of loyalty or membership program, this just became more important. Your member pricing and perks can now get baked directly into your product listings, and they're surfacing in AI-powered search results. For US-based advertisers, you've had access to this for a bit, but the international expansion and the AI surfaces piece is new. If you're not yet feeding loyalty data into Merchant Center, this might be the nudge to start. The brands doing this early are going to have a visibility advantage in AI-generated shopping results, and that's a place you want to be before everyone catches on.

Google's New Data Manager API (Ads DevCast Episode 2)

Google released Ads DevCast Episode 2 covering the new Data Manager API for audience management. This is more of a developer-focused update, but the gist is: if you're managing multiple data pipelines for audience lists and conversion tracking, this API consolidates things.

Why this matters to you: For most advertisers managing accounts in the UI, this isn't going to change your Tuesday. But if you're an agency or in-house team running custom integrations, or if you're working with a developer who manages your data connections, this is worth flagging to them. Fewer pipelines, lower maintenance cost, less stuff breaking at 2am. The practical impact trickles down even if you never touch the API yourself.

Microsoft Ads: Bing Testing a Double-Rowed Shopping Carousel

Over on the Microsoft side, Bing is testing a much larger sponsored product carousel in shopping results, a double-rowed layout that significantly increases the visual real estate for Shopping ads.

Why this matters to you: If you're running Microsoft Shopping campaigns (and if you're an ecommerce brand, you really should at least test it, we often see incremental sales for our ecom clients with Microsoft Shopping), this could mean a meaningful visibility boost. More product slots in the carousel means more chances your products get seen. Keep an eye on your Microsoft Shopping impression share and click-through rates over the next few weeks to see if this test rolls out more broadly.

Microsoft Advertising API Moving from SOAP to REST

And finally, Microsoft announced they're transitioning their Advertising API from the legacy SOAP format to a modern REST API.

Why this matters to you: Again, this is a developer-facing change, but it matters if you use any third-party tools or scripts that connect to the Microsoft Ads API. SOAP has been around since the dinosaurs roamed the internet, and REST is the modern standard. If you've got custom automations built on the old SOAP API, start thinking about migration timelines now rather than scrambling later. For everyone else: your tools will handle this behind the scenes, but it's good to know it's happening.

The TL;DR

The two I'd prioritize checking on this week: the experiments auto-apply default (seriously, go look at your settings) and the Merchant Center loyalty expansion if you're running ecommerce with any kind of member program. The PMax channel timeline is a nice quality-of-life improvement worth exploring. Everything else is more of a "good to know" than a "drop everything."

That's the week!

May the Auctions be Ever in your Favor....

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