"Could not install webhook" error in CiviCRM 4.7.29 / Wordpress 4.9.2
Created by: nicktiberi
I have the latest code installed from master, and when I try to send a test email, I get the following error:
SparkPost error Could not install webhook (Sparkpost error: HTTP return code 400, Sparkpost error code 400 (POST to webhook target URL failed with non-2xx response code 404: ). Check https://support.sparkpost.com/customer/en/portal/articles/2140916-extended-error-codes for interpretation.).
I checked Sparkpost and no webhook has been installed. Any idea why it's failing to install? My API key is correct, as above the error message it validated that my sending domain was configured properly.
I also tried creating a webhook manually at https://mysite.com/?page=CiviCRM&q=civicrm/sparkpost/callback which works in Sparkpost, but am still getting the same error in CiviCRM.
Thanks for any assistance!