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.