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In this Help Centre, you can find content for both Merchant Center Next and the classic Merchant Center experience. Look for the logo at the top of each article to make sure that you're using the article for the Merchant Center version that applies to you. 

MPN [mpn]

A custom icon for Merchant Center Classic and Merchant Center Next.

Use the MPN [mpn] attribute to submit your product's Manufacturer Part Number (MPN). MPNs are used to uniquely identify a specific product among all products from the same manufacturer. Shoppers might search specifically for an MPN, so providing this attribute can help them find your listing.
An illustration showing product packaging with the MPN visible and highlighted

In this article

When to use 

RequiredRequired for all products without a manufacturer-assigned GTIN. Learn about the GTIN [gtin] attribute

If the product doesn't have a clearly associated MPN or is a custom-made product (for example, art, custom T-shirts, novelty products and handmade products), the attribute is optional.

Only provide an MPN if you're sure that it's correct. When in doubt do not provide an MPN (for example, do not guess or make up a value).

Format

Follow these formatting guidelines to make sure that Google understands the data that you're submitting.

Learn when and how to submit your product data in English

Type String (Alphanumeric, Unicode characters. Recommended: ASCII only)
Limits 1–70 characters
Repeated field No
Schema.org property (What is this?) Product.mpn, Type: Text
 
File format Example entry
Text GO12345OOGLE
XML feeds <g:mpn>GO12345OOGLE</g:mpn>

To format your data for Content API, see the Content API for Shopping resource.

 

Note: To ensure that this product data attribute is recognised by our system correctly, remember to submit your data feed file in a format that we support.

Minimum requirements

These are the requirements that you'll need to meet to show your product. If you don't follow these requirements, we'll disapprove your product and let you know in your Merchant Center account.

  • Submit any other relevant unique product identifiers. You might be required to submit the brand [brand] and GTIN [gtin] attributes. When you submit product identifiers, we can better understand what you're selling. When we understand what you're selling, we can make your ads and unpaid listings richer and help connect users to your products. Learn more about product identifier attributes
  • Use the MPN assigned by the manufacturer. Unless you're the manufacturer, don't use a value that you've created.
  • Distinguish between variants.
    • Use the correct MPN for each product. Typically, each variant of a product (different colours or sizes) has its own MPN, so make sure that you submit the correct value. A key exception is different sizes of clothing products, where all sizes often have the same MPN.

Additional guidelines

Review each section closely to determine whether the requirements apply to your country or product. If you don't follow requirements that apply to you, we'll disapprove your product and let you know in Diagnostics in your Merchant Center account.

Compatible and refurbished third-party products
Bundles
  • Use the MPN of the 'bundle', not the individual products, if the manufacturer created the bundle.
  • Use the MPN of the 'main product' if you created the bundle. For example, if you bundle a camera with a lens and carrying bag, submit the MPN of the camera, which is the main product. Learn more about submitting bundles.
Multipacks
  • Use the MPN of the 'multipack', not the individual products, if the manufacturer created the multipack.
  • Use the MPN of the 'individual products', if you created the multipack. Learn more about submitting multipacks
Printer cartridges

Examples

Food and beverages

An illustration of a jug of milk with product data visible and highlighted

Product data for a new 1-l goat milk
Attribute Value

Title [title]

1 L Goat milk – 1 L

Brand [brand]

MILK

GTIN [gtin]

0614141123452

MPN [mpn]

H2G2-42

Condition [condition]

new
Electronics

An illustration showing product packaging with the MPN visible and highlighted

Product data for a new black Google Chromecast 2 1080p Wi-Fi
Attribute Value

Title [title]

Google Chromecast 2 – 1080p – Wi-Fi – black

Brand [brand]

Google

MPN [mpn]

H2G2-42

GTIN [gtin]

7894892017139

Condition [condition]

new
Bundles and multipacks

An illustration of a bundle that includes a camera body, lens, and bag

Product data for a new Google 25.3 MP Digital SLR Camera Body including a 35 m lens and a blue camera bag priced at GBP 435.00

Attribute Value

Title [title]

Google 25.3 MP digital SLR camera body + 35 mm lens + blue camera bag

Price [price]

435 GBP

Google product category [google_product_category]

Cameras & Optics > Cameras > Digital Cameras (152)

Brand [brand]

Google

GTIN [gtin]

00652810118491

Bundle [is_bundle]

yes

Condition [condition]

new

MPN [mpn]

00638HAY
Variants

If your product comes in multiple colours or sizes, you have different unique product identifiers for each of these variants. For example:

An example of ads without placeholder images

Product data for a new, small green Google T-shirt priced at GBP 11.00
Attribute Value

Title [title]

Google T-shirt – Green – Small

Price [price]

11 GBP

Colour [color]

Green

Size [size]

S

ID [id]

9876-S-GRN

Item group ID [item_group_id]

9876

Brand [brand]

Google

GTIN [gtin]

9504000059424

Condition [condition]

new

MPN [mpn]

00638HAY

 

Product data for a new, small, blue Google T-shirt priced at GBP 9.00
Attribute Value

Title [title]

Google T-shirt – Blue – Small

Price [price]

9 GBP

Colour [color]

Blue

Size [size]

S

ID [id]

9876-S-BLU

Item group ID [item_group_id]

9876

Brand [brand]

Google

GTIN [gtin]

9504000059422

Condition [condition]

new

MPN [mpn]

00638NIC

 

Product data for a small, new yellow Google T-shirt priced at GBP 12.00
Attribute Value

Title [title]

Google T-shirt – Yellow – Small

Price [price]

12 GBP

Colour [color]

yellow

Size [size]

S

ID [id]

9876-S-YELLOW

Item group ID [item_group_id]

9876

Brand [brand]

Google

GTIN [gtin]

9504000059446

Condition [condition]

new

MPN [mpn]

00638ANG
Phone or tablet

An illustration with 3 different colors of one mobile phone

 
Attribute Value

Title [title]

Google Nexus 6 – 32 GB – Midnight blue – Unlocked

Price [price]

199 GBP

Google product category [google_product_category]

Electronics > Communications > Telephony > Mobile phones

Brand [brand]

Google

Gtin [gtin]

0614141123452

MPN [mpn]

00638NAGPE

Condition [condition]

new
Shop brand and private-label products

An illustration of a couch with product staging

Product data for a new, brown/green MyStore 3-seater sofa priced at GBP 799.00
Attribute Value

Title [title]

Three-seater sofa – brown/green

Price [price]

799 GBP

Brand [brand]

MyStore

GTIN [gtin]

0614141123452

MPN [mpn]

00638NAGPE

Condition [condition]

new
Products without an MPN

Some products don't have an MPN assigned, meaning you don't need to submit one. However, if the product does have an MPN assigned and you don't submit it, the product could be disapproved.

An illustration of a woman wearing a black dress

Product data for a new customised medium black dress priced at GBP 32.00
Attribute Value

Title [title]

Black dress customised with your design – Size M

Price [price]

32 GBP

Colour [color]

Black

Size [size]

M

Identifier exists [identifier_exists]

no

Condition [condition]

new

Is bundle [is_bundle]

yes

MPN [mpn]

(Leave blank, as the dress is custom made and doesn't have an MPN)

An illustration of a scarf that's in new condition

Product data for a new custom-made orange/black wool scarf priced at GBP 15.00
Attribute Value
Title [title] Hand-knitted polka-dot wool scarf – orange/black
Identifier exists [identifier_exists] no
Price [price] 15 GBP
Colour [color] Orange/black
Condition [condition] new
MPN [mpn] (Leave blank, as the scarf is custom made and doesn't have an MPN)

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