When a request arrives from VID to SO, SO dropped the source. Please see ApiHandler log below: The problem is highlighted.

2017-11-14T14:50:35.955Z|2cda9f03-8f37-4b1c-809b-e082a9023a28|URL : http://mso:8080/mso/async/services/CreateGenericALaCarteServiceInstance
2017-11-14T14:50:35.955Z|2cda9f03-8f37-4b1c-809b-e082a9023a28|building sir from object ServiceInstancesRequest [requestDetails=RequestDetails [modelInfo=ModelInfo [modelCustomizationName=null, modelInvariantId=393a4da6-7179-4ed5-a6f0-b863c3b57c64, modelType=service, modelNameVersionId=null, modelName=demoVCPE, modelVersion=1.0, modelCustomizationUuid=null, modelVersionId=1aef032b-ebe6-4c3c-b8e1-08e2f12b7cd5, modelCustomizationId=null], requestInfo=RequestInfo [billingAccountNumber=null, callbackUrl=null, correlator=null, orderNumber=null, productFamilyId=null, orderVersion=null, source=VID, instanceName=ofirvcpe3, suppressRollback=false, requestorId=demo], relatedInstanceList=null, subscriberInfo=SubscriberInfo [globalSubscriberId=Demonstration, subscriberName=null], cloudConfiguration=null, requestParameters=RequestParameters [subscriptionServiceType=vCPE, userParams=[], aLaCarte=true, autoBuildVfModules=false, usePreload=true, rebuildVolumeGroups=false]], serviceInstanceId=null, vnfInstanceId=null, networkInstanceId=null, volumeGroupInstanceId=null, vfModuleInstanceId=null]
2017-11-14T14:50:35.957Z|2cda9f03-8f37-4b1c-809b-e082a9023a28|REQUEST JSON before mapping: {"requestDetails":{"modelInfo":{"modelInvariantId":"393a4da6-7179-4ed5-a6f0-b863c3b57c64","modelType":"service","modelName":"demoVCPE","modelVersion":"1.0","modelVersionId":"1aef032b-ebe6-4c3c-b8e1-08e2f12b7cd5"},"requestInfo":{"instanceName":"ofirvcpe3","suppressRollback":false,"requestorId":"demo"},"subscriberInfo":{"globalSubscriberId":"Demonstration"},"requestParameters":{"subscriptionServiceType":"vCPE","aLaCarte":true,"autoBuildVfModules":false,"cascadeDelete":false,"usePreload":true,"rebuildVolumeGroups":false}}}
2017-11-14T14:50:35.957Z|2cda9f03-8f37-4b1c-809b-e082a9023a28|REQUEST JSON after mapping: {"requestDetails":{"modelInfo":{"modelInvariantUuid":"393a4da6-7179-4ed5-a6f0-b863c3b57c64","modelType":"service","modelName":"demoVCPE","modelVersion":"1.0","modelUuid":"1aef032b-ebe6-4c3c-b8e1-08e2f12b7cd5"},"requestInfo":{"instanceName":"ofirvcpe3","suppressRollback":false,"requestorId":"demo"},"subscriberInfo":{"globalSubscriberId":"Demonstration"},"requestParameters":{"subscriptionServiceType":"vCPE","aLaCarte":true,"autoBuildVfModules":false,"cascadeDelete":false,"usePreload":true,"rebuildVolumeGroups":false}}}
2017-11-14T14:50:35.957Z|2cda9f03-8f37-4b1c-809b-e082a9023a28|Camunda url is: http://mso:8080/mso/async/services/CreateGenericALaCarteServiceInstance
2017-11-14T14:50:35.958Z|2cda9f03-8f37-4b1c-809b-e082a9023a28|request body is {"variables":{"bpmnRequest":{"value":"{\"requestDetails\":{\"modelInfo\":{\"modelInvariantUuid\":\"393a4da6-7179-4ed5-a6f0-b863c3b57c64\",\"modelType\":\"service\",\"modelName\":\"demoVCPE\",\"modelVersion\":\"1.0\",\"modelUuid\":\"1aef032b-ebe6-4c3c-b8e1-08e2f12b7cd5\"},\"requestInfo\":{\"instanceName\":\"ofirvcpe3\",\"suppressRollback\":false,\"requestorId\":\"demo\"},\"subscriberInfo\":{\"globalSubscriberId\":\"Demonstration\"},\"requestParameters\":{\"subscriptionServiceType\":\"vCPE\",\"aLaCarte\":true,\"autoBuildVfModules\":false,\"cascadeDelete\":false,\"usePreload\":true,\"rebuildVolumeGroups\":false}}}","type":"String"},"requestId":{"value":"2cda9f03-8f37-4b1c-809b-e082a9023a28","type":"String"},"mso-request-id":{"value":"2cda9f03-8f37-4b1c-809b-e082a9023a28","type":"String"},"isBaseVfModule":{"value":false,"type":"Boolean"},"recipeTimeout":{"value":180,"type":"Integer"},"requestAction":{"value":"createInstance","type":"String"},"serviceInstanceId":{"value":"","type":"String"},"vnfId":{"value":"","type":"String"},"vfModuleId":{"value":"","type":"String"},"volumeGroupId":{"value":"","type":"String"},"networkId":{"value":"","type":"String"},"serviceType":{"value":"demoVCPE","type":"String"},"vnfType":{"value":"","type":"String"},"vfModuleType":{"value":"","type":"String"},"networkType":{"value":"","type":"String"},"host":{"value":"mso","type":"String"}}}