The CommunicationsBillingEBF.ProcessFulfillmentOrderBillingAccountList service is invoked from an OSM orchestration plan. A I A runs the BRMSyncCustomerABCS, CommunicationBillingEBF, ProcessBillingAccountList, and PartyEBSV2QueryCustomer services to update the customer information from Siebel CRM and synchronize customer information to BRM.