What is changing?

Amazon is replacing the Material Composition attribute with the Fabric Type attribute. Previously, both the Material Composition and Fabric Type attributes were available to use when listing products. We are simplifying the listing experience by combining them into a single attribute (fabric_type) as the attribute for composition of material.

This brings changes to

• Attribute unification: New listings must be submitted with material composition values in fabric_type.
• Attribute validation: The values submitted must be valid, and in the proper structure.

For existing listings, Amazon will copy values from material_composition to fabric_type. This change doesn't impact variation themes.

In XSDs the attribute (fabric_type) can be filled using either FabricType or MaterialandFabric.

When will the changes take place?

The change will happen in phases for XSDs:

Phase 1:

• Starts on 13th December 2021.
• Product Types: SKIRT, SHORTS, BRA.
• Marketplace: US and Spain.

Phase 2:

• Starts on 10th January 2022.
• Product Types: As below.
• Marketplace: As below.

Note: For 1 by 1 and inventory file templates, the changes will start as follows:

• Attribute unification will start on 4th November 2021.
• Attribute validation will start from 13th December 2021 onwards, same as XSDs.

The date communicated earlier for both changes was 20th August 2021.

Which Product Types are affected?

The following product types are affected by this change (if available for your country): APPAREL_HEAD_NECK_COVERING, HAT, APPAREL_GLOVES, BODYSTOCKING, BRA, CAMISOLE, COORDINATED_OUTFIT, CORSET, HOSIERY, LEOTARD, MEDICAL_SCRUB_SET, SOCKSHOSIERY, UNION_SUIT, ADULT_COSTUME, BABY_COSTUME, SOCKS, TIGHTS, APPAREL, UMBRELLA, ORCA_SHIRT, BRA_UNDERWEAR_SET, UNDERGARMENT_SLIP, WAIST_CINCHER, APRON, ARM_SLEEVE, BLAZER, CHANCHANKO, CLOTH_WRAP, COAT, DRESS, ETHNIC_WEAR, FOOD_BIB, JINBEI, KIMONO, LEG_SLEEVE, LEHENGA_CHOLI_SET, NECKTIE, OBI, ONE_PIECE_OUTFIT, OUTERWEAR, OVERALLS, PANTS, ROBE, SALWAR_SUIT_SET, SHIRT, SHORTS, SKIRT, SLEEPWEAR, SUIT, SWEATER, SWIMWEAR, TRACK_SUIT, UNDERWEAR, UNSTITCHED_GARMENT, VEST, YUKATA, CHOLI, SAREE, SASH, SCARF, DESIGNER_KIMONO, SNOWSUIT, SNOW_PANT, DUPATTA, BLOUSE, TUNIC, LEHENGA, NIGHTGOWN_NIGHTSHIRT, PAJAMAS, SWEATSHIRT, KURTA, BASE_LAYER_APPAREL_SET, UNDERGARMENT_THIGH_SLIMMER, UNDERPANTS.

Which marketplaces are affected?

The US, Spain, UK, France, Germany and Italy marketplaces are affected.

Who is affected?

Developers with applications that upload and update product listings using feeds based on the category-specific inventory file templates are affected by this change.

What action is required?

If you have an application that is affected by this change, be sure to:

• Base your application workflow on the latest inventory file templates.
• Ensure that the fields in the header line of your feed match the fields in the latest template for that feed.

For example: TemplateType=fptcustom,Version=2018.1107,Category=petsupplies,TemplateSignature=UEVUX1NVUFBMSUVT

More information

For the latest templates, see Inventory file templates and BTG99 in Seller Central.

For Valid Values, Structure and Fabric Type Listing FAQ:

• US - Create and manage inventory FAQ
• Spain, UK, France, Germany, Italy - Fabric Type Listing FAQ

Best regards,

The Selling Partner API team