Mainly I had this requirement where I had to delete audit log to shrink the database size so that it come back within log capacity threshold. Below is the code for the DeleteRecordChangeHistoryRequest() method usage. Here I am looping through the records to delete the changed history for a particular entity in my case it is "Customer Asset". static void Main(string[] args) { try { IOrganizationService _service; ClientCredentials credentials = new ClientCredentials(); credentials.UserName.UserName = "username"; credentials.UserName.Password = "pwd"; Uri serviceUri = new Uri(@"soapurl"); OrganizationServiceProxy proxy = new OrganizationServiceProxy(serviceUri, null, credentials, null); proxy.EnableProxyTypes(); _service = (IOrganizationService)proxy; //fetchXML for getting entity string fetchXML = @"<fetch mapping='logical'> <entity name='msdyn_customerasset'>