Request media type unsupported: the server is refusing to service the request because the media type specified in request under the Content-Type header attribute is not supported by the requested resource for the requested method. This error means that the media type on the request message is unexpected/unsupported.
Do you think there is another cause for this error? Let others know in the comments below.
Please Contact your DEV team to verify configuration for Product Automation; Contact Expedia to confirm the correct format.