Better handling of rss_opts for POST Campaigns
We fixed a bug in the POST Campaigns endpoint regarding invalid request body parameters for non-rss campaigns.
We were receiving requests that were attempting to create non-rss type campaigns with an rss_opts field. These requests were throwing exceptions and returning 500 status codes to users. We now return a 400 status code if rss_opts are provided for non-rss type campaigns.
Sunsetting the Mailchimp API Playground
We shut down the Mailchimp API Playground.
The API Playground let users explore the Marketing API and the data it returns. Instead, we recommend users learn about and explore their API data with our new API Reference docs, which include rich code snippets written for our official client libraries.