Search is no longer just a list of links. Shoppers ask detailed questions, compare variants, and want to know whether a phone includes a charger, what warranty applies, or which accessory fits.

For ecommerce teams, that changes how product feeds must be prepared.

Google introduced conversational attributes in Merchant Center: optional fields that help AI systems understand products, variants, relationships, and common customer questions. They do not replace the classic feed. They extend it.

What conversational attributes are

These fields are designed for experiences such as:

• AI Mode in Google Search
• Gemini
• future Business Agent experiences

According to Google, they are:

• optional
• additive
• non-disruptive to existing product approvals
• especially useful for detailed questions, not just keyword matching

The six main attributes are:

1. question_and_answer
2. document_link
3. related_product
4. item_group_title
5. variant_option
6. popularity_rank

Question and answer

The most discussed attribute. It lets merchants send question–answer pairs about a product.

Example:

• Q: “Does the phone include a charger in the box?”
• A: “This model does not include a charger in the box.”

Limits:

• up to 30 Q&A pairs per product
• maximum 10,000 characters total
• no prices, promotions, or time-dependent data

Document link

Attach public PDFs such as manuals, spec sheets, or assembly instructions. Documents must be crawlable and distributable by the merchant.

Related product

Link a product to accessories, required parts, substitutes, or frequently bought together items.

Item group title

Provide a shared title for all variants of a product.

Example:

• variant title: Samsung Galaxy S25 5G Dual SIM | 128GB | Navy
• group title: Samsung Galaxy S25 5G Dual SIM

Variant option

Describe variant dimensions explicitly.

Example: color:navy,storage:128GB

Popularity rank

A score from 0.0 to 100.0 indicating relative popularity inside the merchant catalog.

Why this matters now

Google is investing in agentic commerce:

• Universal Commerce Protocol (UCP)
• Business Agent
• richer Merchant Center data for conversational shopping

Google is optimizing for real questions, not just keyword + title + price. For retailers, the product feed is becoming a strategic asset—not only a technical requirement for Shopping.

How to send these attributes

Google recommends three paths:

1. Supplemental feed — best for pilots
2. Primary feed — possible, but riskier operationally
3. Merchant API — best for automation at scale

Why supplemental feed is the best first step

• you do not touch the critical primary feed pipeline
• you can test on 20–100 SKUs
• you can stop or adjust quickly
• ownership can be split: primary feed = IT/ecommerce, conversational = SEO/content/product data

What belongs in conversational attributes

Site content	Google attribute
color / storage	variant_option, item_group_title
“no charger in the box”	question_and_answer
recommended adapter	question_and_answer
warranty	question_and_answer
return policy	question_and_answer
frequently bought together	related_product
sales rank / top products	popularity_rank

What does not belong in Q&A

Do not use conversational attributes for:

• vouchers
• subscription discounts
• promotional financing
• personalized logged-in prices
• limited-time campaigns

Wrong:

• “How much is it with voucher SUN80?”
• “Until when is the TBI campaign valid?”

Right:

• “Does the phone include a charger?”
• “What warranty does the product have?”
• “Can I return the product within 30 days?”

Example for a phone SKU

Product:

Samsung Galaxy S25 5G Dual SIM | 128GB | Navy

Recommended conversational data:

item_group_title

Samsung Galaxy S25 5G Dual SIM

variant_option

color:navy,storage:128GB

question_and_answer

• “Does the phone include a charger in the box?” → “This model does not include a charger in the box.”
• “What charging adapter is recommended?” → “Use a compatible Power Delivery adapter between 10 W and 25 W.”
• “What warranty does the product include?” → “The product includes a 24-month warranty when purchased from the online store.”
• “Can I return the product if I am not satisfied?” → “You can return the product within 30 days according to the store return policy.”

related_product

• compatible case
• recommended PD charger
• alternative model in the same range

popularity_rank

92.0

A practical 4-step pilot

Step 1: verify Merchant Center

Confirm whether your account already accepts the new fields in supplemental feed mapping.

Step 2: choose a small pilot

20 products is enough:

• 10 popular phones
• 5 accessories
• 5 products with multiple variants

Step 3: create a supplemental feed

Minimum columns:

• id
• item_group_title
• variant_option
• question_and_answer

Step 4: monitor calmly

Check Diagnostics for errors. If the pilot is clean, expand category by category.

Common mistakes to avoid

1. Copying the product description into Q&A
2. Using Q&A for promotions or prices
3. Mapping the wrong id
4. Scraping frontend content instead of stable backend sources
5. Linking unstable or non-crawlable PDFs

Expected benefits

Google does not promise a universal CTR lift yet, but the likely gains are:

• better answers in AI experiences
• stronger visibility for detailed questions
• differentiation versus competitors with minimal feeds
• readiness for Business Agent and agentic commerce
• cleaner relationships between products, variants, and accessories

Recommended priority

1. item_group_title
2. variant_option
3. question_and_answer
4. related_product
5. popularity_rank
6. document_link

Conclusion

Conversational attributes are not a marketing gimmick. They are a natural extension of product data in a world where users want answers, not just links.

The advantage is not sending more text. It is sending more clarity.

Sources

• How to use conversational attributes
• Question and answer
• Document link
• Related product
• Item group title
• Variant option
• Popularity rank
• Agentic commerce tools for retailers