Today we're releasing v4 of the Campaign Manager 360 API. This release adds support for the following Billing Services:
  Advertiser Invoices 
  Billing Assignments 
  Billing Profiles 
  Billing Rates 
 
Details of these and all other changes are covered in our release notes .Deprecation and sunset reminder deprecation schedule , this release marks the beginning of the depreciation period for v3.5, which will sunset on Feb 15, 2023 . After this date, any requests made against v3.5 will begin returning errors.migration guide  for details. For most, you just need to upgrade to the latest version of your preferred client library . We recommend you to review the release notes  to learn about important changes you might need to be aware of.support forum .Learn More release notes . For those of you looking to get going right away, updated client libraries  are now available. If you're just starting out, the Get Started guide  is a great reference to help you get up and running quickly.Give it a try  and let us know  if you have any questions!