Occurs in a client's Live mode, but not Sandbox mode and not in our Live/Sandbox mode. Currently waiting on access to the client's PayPal account to confirm settings. Details of Error (Occurs when trying to create a billing agreement, creating/updating billing plans works fine): AggregateException: One or more errors occurred. (The remote server returned an error: (400) Bad Request.) System.Threading.Tasks.Task<TResult>.GetResultCore(bool waitCompletionNotification) PayPal.Api.PayPalResource.ConfigureAndExecute<T>(APIContext apiContext, HttpMethod httpMethod, string resource, string payload, string endpoint, bool setAuthorizationHeader) System.AggregateException: One or more errors occurred. (The remote server returned an error: (400) Bad Request.) ---> PayPal.HttpException: The remote server returned an error: (400) Bad Request. at PayPal.Api.HttpConnection.Execute(String payLoad, HttpWebRequest httpRequest) --- End of inner exception stack trace --- at System.Threading.Tasks.Task`1.GetResultCore(Boolean waitCompletionNotification) at PayPal.Api.PayPalResource.ConfigureAndExecute[T](APIContext apiContext, HttpMethod httpMethod, String resource, String payload, String endpoint, Boolean setAuthorizationHeader) ---> (Inner Exception #0) PayPal.HttpException: The remote server returned an error: (400) Bad Request. at PayPal.Api.HttpConnection.Execute(String payLoad, HttpWebRequest httpRequest)<---
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