identifier_exists: Definition

Use the identifier_exists attribute to indicate that unique product identifiers (UPIs) aren’t available for your product. Unique product identifiers are submitted using the gtin, mpn, and brand attributes.

When to use

Use for products that don’t have a GTIN, MPN, or brand.

• If your product is new (which you submit through the condition attribute) and it doesn’t have assigned product identifiers that meet the requirements below, then submit identifier_exists with a value of no or false.

Use the following set of rules to provide the correct identifiers for each of your products.

Product identifier requirements
Regardless of category	The gtin attribute is required if the product is widely manufactured and has a GTIN.
	Apparel	Media	Other categories
Required product identifiers based on category	Requires a value for the brand attribute	Requires a value for the gtin attribute (for example, ISBN)	Requires a value for the brand attribute (if there is no brand, provide the manufacturer/supplier name) If there is no GTIN, provide the mpn attribute.
Otherwise	If product identifier requirements are not met, then your item’s performance may be limited.

Products that might not have unique product identifiers include:

• Custom goods or one-of-a-kind items, like custom T-shirts, art, or handmade goods
• Products produced before GTINs were introduced, like vintage products, antiques, books published before 1970, and other special items

Format

Follow these formatting guidelines to make sure we understand the data you're submitting. 

Type	Boolean
Supported values (Text and XML feeds)	yes, true, no, false
Supported values  (Content API feeds)	true, false
Repeated field	No

 

File format	Example entry
Text	no
XML feeds	<g:identifier_exists>no</g:identifier_exists>

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

Guidelines

Follow these guidelines to make sure you submit high-quality data for your products.

• Ensure that you only use this attribute if you are sure that your product doesn’t have any assigned unique product identifiers. 
• Products for which the identifier_exists attribute is incorrectly set to no or false and for which there is evidence that a unique product identifier exists, will be disapproved.

Examples