lib/twilio-ruby/rest/messaging/v1/external_campaign.rb in twilio-ruby-7.1.1 vs lib/twilio-ruby/rest/messaging/v1/external_campaign.rb in twilio-ruby-7.2.0

@@ -43,11 +43,12 @@
                         data = Twilio::Values.of({
                             'CampaignId' => campaign_id,
                             'MessagingServiceSid' => messaging_service_sid,
                         })
 
+                        headers = Twilio::Values.of({'Content-Type' => 'application/x-www-form-urlencoded', })
                         
-                        payload = @version.create('POST', @uri, data: data)
+                        payload = @version.create('POST', @uri, data: data, headers: headers)
                         ExternalCampaignInstance.new(
                             @version,
                             payload,
                         )
                     end