Release Notes

2026
Sep

Mo

14

Tu

15

We

16

Th

17

Fr

18

Sa

19

Su

20

Mo

21

All changes
Select tags
Select tags

September
2026

Changed

Changed
09/10/2026
Item Management
Listing Items
Listings
Adjusting the B2B Sales Object Description in Listing Methods

Adjusted the wholesale object description in the requests and responses for the methods:

In the previous version of the wholesale object description, it was incorrectly specified that when "enabled":true, the item is intended for wholesale sales.
In the corrected version of the wholesale object description, it is specified that when "enabled":true, the item is intended for any B2B sale, not just wholesale.

Changed

Changed
09/08/2026
Action Required
Item Management
Listing Items
Listings
Documents in Item Management methods

Now you can use the WB API to specify documents in the listing:

  • Certificate of Conformity
  • The Correspondence Declaration
  • Certificate of Registration of SGR
  • Registration Certificate
  • Certificate of Registration of the Republic of Belarus
  • Registration of a Pesticide
  • Registration of an Agrochemical
  • Medicine Registration Certificate

To specify the documents in the listing, use the documents object in the requests for methods :

To get information about the documents specified in the listing, use the documents object in the responses for the Listings method — POST /content/v2/get/cards/list.

You can now only pass documents in the characteristics array:

  • if you have never specified the documents object in your requests
  • if you have not specified documents in your personal account in the updated Documents section in listings.

We recommend passing documents only using the documents object, because if you pass documents in the characteristics array, these documents may be processed incorrectly for any listings.

Documents that have already been in listings will be automatically duplicated in the documents object in the responses for the POST /content/v2/get/cards/list method.

We remind you that listings are overwritten during updates. Therefore, in the requests for the POST /content/v2/cards/update method, include those documents that you are not going to update.

August
2026

Changed

Changed
08/15/2026
FBW Supplies
Information for Forming Supplies
Rates
Return Cost to Seller
Supply Rates
Stock Rates
Reports
Main Reports
Warehouses Inventory Report
Paid Storage
Analytics and Data
Sales Funnel
Seller Analytics CSV
Stocks Report
Order Feed
Documents and Accounting
Financial Reports
Temporary Сhanges in the Work of WB API with WB Warehouses Starting from August 15

Starting from August 15 we are making temporary changes to how WB API works. Some information about WB warehouses will not be available, see more in the news on Sellers Portal.

  • The methods of Information for Forming Supplies and Supply Rates are disabled
  • Stock Rates returns data:
    • Box Rates — only for warehouses outside the Russian Federation, and also with warehouseName:
      • Свой склад РФ
      • Свой склад СГТ РФ
    • Pallet Rates — only for warehouses outside the Russian Federation
  • Return Rates returns data only for warehouses outside the Russian Federation, and also with warehouseName:
    • Свой склад РФ
    • Свой склад СГТ РФ
    • Склад WB РФ
    • Склад WB СГТ РФ
  • In the warehouses array of WB Warehouses Inventory Report totals with "warehouseName":"Warehouse WB Rus" and "warehouseName":"Warehouse WB SGT Rus" are returned instead of data for warehouses in the Russian Federation, except those specified in the news separately and Koledino
  • In the Paid Storage report and in the Analytics and Data reports with details on WB warehouses, WB warehouse data is returned only in totals by item sizes
  • The following constant values are set in report lines:
  • The following constant values are set in report lines for WB warehouses:
  • The following constant values are set in report lines for shipping warehouses in the Russian Federation:
  • In Details for the Sales Reports by Report ID and by Period values of the officeName field for warehouses in the Russian Federation, starting from daily reports for August 13, are reduced to the four specified in the news

We will inform you about further changes later.

New

New
08/12/2026
Marketing and Promotion
Campaigns Management
Recommended Bids for CPC Campaigns

The GET /api/advert/v0/bids/recommendations method now returns recommended bids not only for campaigns with the CPM payment type — per impressions, but also for CPC — per clicks.

Changed

Changed
08/11/2026
Action Required
FBS Orders
FBS Label Identifiers
Changes in FBS Orders

Starting from August 18, you will only be able to add a customs declaration number to assembly orders with the confirm status.

Also, starting from August 18, sellers from Armenia will be required to specify a customs declaration number for items produced outside the EAEU if an order from Armenia is being delivered to the Russian Federation.

To check whether it is required to add a customs declaration to an assembly order, use the GET /api/v3/orders/new method. The required label identifiers are listed in the requiredMeta field.

To add a customs declaration number to an assembly order, pass it in the request of the PUT /api/marketplace/v3/orders/{orderId}/meta/customs-declaration method in the customsDeclaration parameter.

Without the required customs declaration number, it is impossible to get assembly order stickers using the POST /api/v3/orders/stickers method — if the required customs declaration number is not specified for at least one assembly order, you will receive error 409 CustomsDeclarationIsRequired.

Also, if the required customs declaration number is not added to the assembly order, the supply with this assembly order cannot be transferred to delivery. In the response of the PATCH /api/v3/supplies/{supplyId}/deliver method, you will receive error 409 MetaValidationFail, and the decision field for customsDeclaration will return the required value.

To check whether the required customs declaration number is added to the assembly order before transferring the supply to delivery, use the POST /api/marketplace/v3/orders/meta method. You can transfer a supply to delivery if the decision field for customsDeclaration returns filled or optional statuses.