For more information on the Munchkin 159 release, see this Marketing Nation Post.
How do I know if I’m affected?
Adobe will notify customers where we have observed usage of this method on their subscription, and will do so several times over the deprecation period.
When will the method be removed?
This method will be removed in Munchkin JS v161, scheduled for General Availability alongside the October 2021 Marketo release.
Why is this method being removed?
More performant ways of fulfilling the same use cases have been implemented and released since the introduction of this method. In order to improve the performance and health of our services, it is sometimes necessary to remove features which do not perform to acceptable standards.
What should I use instead of this method?
Munchkin Associate Lead has two primary use cases, submission of person data, and association of a browser web-tracking cookie to the corresponding person record in Marketo. Since Munchkin Associate Lead was introduced, more robust ways of performing data submission and cookie association have been implemented.
If your use case requires submission of person data from the browser, you should use background form submission.
If you do not need browser-side submission, the REST API offers many methods for person data submission, and a purpose-built method for associating cookies to person records.
When is Version 159 of Munchkin Rolling Out?
Version 159 has been in General Availability since the October 2020 Marketo release.