What is changing?
Starting June 15, 2019, the WIRELESS_ACCESSORY PT template will require a value for the compatible_phone_models field.
Who is impacted?
Developers with applications that upload and update listings using feeds based on the WIRELESS_ACCESSORY PT template are affected by this change.
What action is required?
Update your application to require a value for the compatible_phone_models field.
This change does not require you to download new client libraries.