June 2, 2026: This article was updated due to the discontinuation of sign-in using one-time passcodes.
May 13, 2026: The article has been updated due to changes regarding the end of sign in using one-time passcodes.
April 7, 2026: This article has been updated because changes were made to the “Implementation details” regarding the end of support for sign in using a one-time passcode.
March 11, 2026: The article has been updated following the discontinuation of the Business ID switching feature in the Campaign Editor.
February 19, 2026: The article was published.

LY Ads

As previously announced in “[Yahoo! JAPAN Ads] Notice of implementation details regarding Business ID integration,” we would like to inform you about the end of support for sign in using a one-time passcode and the end of support for the switching feature in Campaign Editor.

May 31, 2026 (Sunday)

Sign-in using one-time passcodes has been discontinued. Going forward, please sign in using a business account for your LINE Business ID. Once you set up a business account, you will be able to sign in using your registered email address and password. For setup instructions, see How to sign in with a LINE Business ID.
• If you have been using only one-time passcodes to sign in, you must integrate your Business ID and set up a business account. Click the “One-time Passcode” button to complete the Business ID integration.
• We previously announced that the name of the “One-time Passcode” button would be changed. However, because there are still cases where users need to sign in with a one-time passcode to complete Business ID integration, we have decided not to change the button name in order to avoid confusion. The button will be removed after a certain period. After it is removed, users with non-integrated Business IDs will only be able to sign in and complete integration using a Yahoo! JAPAN ID.

After the “One-time passcode” button is removed, if you are unable to sign in with a Yahoo! JAPAN ID, you will need to create a new Business ID. In addition, if you want to use an existing account with the newly created Business ID, a user with administrative permissions for the existing account must invite the user of the new Business ID to the account.

March 10, 2026 (Tuesday)

The feature that allows multiple Business IDs to be registered and switched within the Campaign Editor has been discontinued.
Data downloaded to your local environment in the Campaign Management Tool will continue to be available. If you plan to continue using it, please configure the following settings to require sign in each time. By signing in again when launching the Campaign Management Tool, you will be able to use the data in your local environment.

■Search Ads
Select “Settings” > “Sign out when closing the Campaign Management Tool.”

■Display Ads
Select “Settings” > “Sign in Information” > Uncheck “Save sign in information.”

Download the following PDF for more details.
Download the Document