Google Merchant Center 2026 Product Data Spec Changes: New Attributes and the Dates That Matter

The 2026 Spec Update at a Glance

Google published a Merchant Center product data specification update for 2026 in its Help Center, with an effective date of April 14, 2026. It is one of those updates that never makes headlines but quietly changes what a correct feed looks like. Some changes were optional additions. Others come with enforcement dates that are still ahead of us.

This guide organizes the changes by date so that you can tell what is already live, what is already validating, and what is still coming. Everything here comes from Google's published update notice; where Google has not stated a detail, we say so rather than guess.

April 14, 2026: New Shipping Attributes

Google added more shipping options at the product level that previously existed only at the account level. This is useful if one catalog carries products with different handling rules.

• handling_cutoff_time sets a daily deadline for processing online orders. If you process same-day shipping for orders placed before a specific time, this lets you say so per product.
• minimum_order_value specifies the minimum spend required to purchase and ship an order. This is relevant for wholesale-style or bulk-minimum offers.
• loyalty_program_label and loyalty_tier_label are new sub-attributes of the shipping attribute, letting you describe loyalty shipping benefits for individual products.

These are product-level mirrors of settings you may already have in your Merchant Center shipping configuration. The risk is conflict: if your account-level shipping says one thing and a product-level attribute says another, you create the kind of inconsistency that reads as a data quality problem. Decide which level is the source of truth for each rule, and keep the other silent unless it is intentionally an override.

Using Handling Cutoff Time Well

Handling cutoff time is a promise to the shopper, and Google can only show a promise you actually keep. Set the cutoff to the real time your warehouse stops accepting same-day orders, not an aspirational time. If you operate in multiple time zones, confirm which time zone your cutoff is interpreted in before publishing it, and check Google's shipping attribute documentation for the format.

A realistic cutoff protects you from shipping-speed complaints, which feed into the same customer experience signals that affect seller ratings and reviews. If your fulfillment is partly outsourced, read our piece on multi-partner print on demand, where cutoff times vary by supplier.

Minimum Order Value: A Transparency Obligation

If you submit a minimum order value, the shopper must be able to see that requirement before they commit. A landing page that hides a spend minimum until checkout creates a mismatch between the advertised offer and the real one, which is the pattern Google's misrepresentation policy is built to catch.

Make the minimum visible on the product page, in the cart, and in your shipping policy. Our price accuracy guide explains how Google compares feed claims to what shoppers actually see.

The New Video Link Attribute

Google also announced an optional video_link attribute for submitting links to product videos. Videos can show products in use or from different angles, and Google said they will be used to enhance how products are displayed across its surfaces. The timeline matters here:

• April 14, 2026: technical validation errors began to be reported, and merchants could start submitting videos.
• June 30, 2026: videos became eligible to serve, and Google began reporting policy or quality warnings and errors.
• Impact of errors: per Google, a policy or quality error on a video prevents the video from serving but does not affect serving of the associated offer.

That last point is reassuring: a rejected video does not take your product off Shopping. We cover this attribute in depth in our video link guide.

January 31, 2027: The Image Enforcement Date

The most important date ahead is January 31, 2027, when Google begins enforcing its minimum product image size of 500 x 500 pixels. The product data specification itself states that Google recently announced the new requirement for all product images. Warnings have been showing since July 2026, and every image below the floor becomes a disapproval risk once enforcement starts.

Because this is the change most likely to affect many products at once, we wrote a separate walkthrough: Google's 500x500px image requirement and how to audit your catalog. If your catalog has thousands of SKUs, start now.

A Spec-Change Workflow That Scales

1. Export your current feed and note which of the new attributes you already submit, if any.
2. Decide what is relevant. Handling cutoff matters if you ship same-day. Minimum order value matters only if you have a real minimum. Loyalty shipping labels matter only if you run a loyalty program.
3. Update your feed source (a platform app, a spreadsheet or the API). If you use the Content API, see our guide to feed method migration.
4. Check Diagnostics in Merchant Center for technical validation errors on any new column.
5. Audit images against 500 x 500 pixels and queue replacements.
6. Re-scan your store afterwards to confirm nothing regressed.

Common Mistakes With New Attributes

• Submitting the attribute on everything. If only some products have a handling cutoff or minimum, submit only on those.
• Contradicting account-level settings without meaning to.
• Using placeholder values such as 0 or empty strings that technically validate but misstate your offer.
• Forgetting multi-channel feeds. If the same feed also feeds other channels, confirm they ignore unknown columns; see multi-channel feed management.
• Ignoring warnings because the product still serves. Warnings are the preview of future errors, as the image timeline proves.

Spec Update Checklist

Who Should Own Spec Changes in Your Company

Spec updates fail most often because nobody owns them. The marketing team reads the announcement, the developer maintains the feed, and the operations team controls shipping rules, yet a change like handling cutoff time touches all three. Assign a single owner, usually whoever manages the feed, and give them a recurring slot to read Google's Merchant Center announcements page. A fifteen-minute monthly review is enough to catch dated changes months before they bite.

Keep a simple change log with the announcement date, the effective date, whether it is optional or enforced, and the action you took. When an account problem appears later, this log tells you immediately whether a recent change could be responsible. It also gives agencies and freelancers a clean handover document.

Finally, test changes on a small subset of products first. Add a new attribute to ten SKUs, wait for validation, check Diagnostics, and only then roll out to the full catalog. The cost of a slow rollout is a few days. The cost of a bad bulk change, if a mapping error pushes the wrong value into thousands of products, can be a catalog-wide disapproval right when you need traffic.

How to Test a New Attribute Safely

Use a supplemental feed for the first rollout. It lets you add the new column for a handful of product IDs without altering the primary feed, and you can delete it instantly if something misbehaves. After upload, wait for processing, then open Diagnostics and filter by the new attribute name. If validation passes, compare how the products appear in the Merchant Center product list against your intent. Only after a clean week should you promote the attribute into your main feed source and extend it to the wider catalog.

Frequently Asked Questions

Are the new attributes mandatory? Per Google's notice, the shipping additions and the video link are optional. The image size requirement, by contrast, is enforced starting January 31, 2027.

Will a bad video disapprove my product? According to Google's update, video policy or quality errors prevent the video from serving but do not impact the associated offer.

Do I need all four shipping attributes? No. Add only those that describe a real rule in your business.

Where do I see validation problems? In the Needs Attention and Diagnostics sections of your Merchant Center account.

What is the fastest way to catch feed and site problems together? Run a free scan at gmcunbanned.com. It checks feed-adjacent issues such as policy pages, contact details and landing page consistency, which spec changes do not cover.