Release Notes

2026
Jan

Mo

5

Tu

6

We

7

Th

8

Fr

9

Sa

10

Su

11

Mo

12

All changes
Select tags
Select tags

December
2025

New

New
12/30/2025
Documents and Accounting
Financial Reports
New Fields in Details for the Realization Reports

Added the fields with information about seller own promos with additional discounts to the details for the realization reports:

  • seller_promo_id — seller own promo ID with additional discount
  • seller_promo_discount — additional discount from seller promo, %

The new fields will be displayed in daily reports starting with the report for December 29, and in weekly reports starting with the report for December 29–31.

Deprecated

Deprecated
12/29/2025
Action Required
Reports
Main Reports
Disabling the Supplies method

Starting March 11, we will disable the deprecated method for getting the Supplies report.

Use the Supplies Information methods to get the supply data.

Changed

Changed
12/29/2025
Action Required
Reports
Retention Reports
New Reports with Underreporting of Package Dimensions

Added the new methods for getting reports with underreporting of package dimensions:

The deprecated method for getting this data will be disabled on January 27.

Changed

Changed
12/29/2025
Customer Communication
Buyers Chat
Changes in Buyers chat

Added responses with moderation statuses for the Get File from the Message method:

  • 202 The file is under moderation
  • 451 Moderation failed

Deprecated

Deprecated
12/25/2025
Action Required
Marketing and Promotions
Campaigns Parameters
Statistics
Changes in Promotion Methods

As we shift to work with campaigns with custom and standard bids — 9 type, from February 2 we will disable the deprecated methods for standard bid campaigns — 8 type:

The deprecation date for the Setting/Removing Minus-phrases for Campaigns with Standard Bid method changed from January 15 to February 2.

Changed

Changed
12/24/2025
Customer Communication
Buyers Chat
Changes in Buyers chat

In the response of the Chat List method, we added the lastMessage object with information about the last message in the chat:

  • text — message text
  • addTimestamp — message time

Changed

Changed
12/23/2025
Documents and Accounting
Financial Reports
New Field in Details for the Realization Reports

Added the delivery_method field with information about the sales method and cargo type to the details for the realization reports. Now you can match report items with rates based on the delivery method.

The delivery_method field is only displayed for FBS , FBW, and DBW models.

The new field will de displayed in daily reports starting with the report for December 22, and in weekly reports starting with the report for December 22–28.

Changed

Changed
12/19/2025
Documents and Accounting
Financial Reports
New Answer in the Realization Sales Report

Updated the Realization Sales Report method responses. Now, if there is no data, the method returns the 204 No Data response, rather than an empty array [] in the 200 Success response.

Changed

Changed
12/19/2025
Action Required
Reports
Retention Reports
The Substitution and Incorrect Attachments Report

Added the method for getting the Substitution and Incorrect Attachments report.

The deprecated methods for getting this data will be disabled on January 20:

Changed

Changed
12/18/2025
Action Required
Marketing and Promotions
Campaigns
Campaigns Creation
Campaigns Management
Campaigns Parameters
Changes in Promotion Methods

Now you can use WB API to create and manage campaigns with cpc payment type — cost per click.

Added new versions of the methods:

Added the payment_type parameter — campaign payment type — to the following methods:

In the new versions of the methods, bids are displayed and passed in kopecks, not rubles. Previous versions of the methods will continue to support bids in rubles and will be available until February 2:

On February 2 we will also disable the deprecated versions of the methods